Index to OEIS: Section Ro

Index to OEIS: Section Ro

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Robbins , sequences related to :

Robbins constant: A073012

Robbins numbers: A005130*

Robbins numbers: see also A005160

Robbins numbers: see also matrices, alternating sign

Robbins triangle: A048601*, A029656/A029638, A102610

Robinson's constant: A001205*

Rogers-Ramanjuan , sequences related to :

Rogers-Ramanjuan continued fraction: A050203

Rogers-Ramanujan identities: A003114*, A003106*, A006141

Roman numerals for n: A006968*
Roman numerals: see also (1) A002904 A002963 A002964 A003587 A003588 A014287 A036741 A036741 A036742 A036743 A036746 A036786
Roman numerals: see also (2) A036787 A036788
Roman numerals: see also Index entries for sequences related to number of letters in n
Ron's sequence: A006255, A066400, A066401

rook tours, sequences related to :

rook tours: A003763*, A096121, A006071

rook tours: see also graphs, Hamiltonian

rook walks: see also graphs, Hamiltonian

Rooks: A000903, A006071

rooted trees , sequences related to :

rooted trees , see also mobiles

rooted trees , see also trees

rooted trees , A000081* (unlabeled), A000169* (labeled)

rooted trees, (2,3), A001005

rooted trees, 1-2, A006893

rooted trees, 2-ary, see: rooted trees, binary

rooted trees, 2-colored, A000151, A004113, A005753, A029856, A031148, A032306, A038049, A038053, A038055*, A038057*, A038075, A038077, A052316

rooted trees, 3-ary, see: rooted trees, ternary

rooted trees, 3-colored, A006964, A029857, A038050, A038059*, A038061*, A038076, A038079, A047891

rooted trees, 4-ary, A019498, A036606, A036609-A036614, A036627-A036633

rooted trees, 4-colored, A052763

rooted trees, 5-ary, A019499, A036607, A036615-A036620, A036634-A035540

rooted trees, 5-colored, A052788

rooted trees, 6-ary, A019500, A036608, A036621-A036626, A036641-A036647

rooted trees, 7-ary, A019501

rooted trees, achiral, A003240, A003241*, A005627, A003237

rooted trees, asymmetric (1): A004111*, A005355, A005754, A007560, A022553, A031148, A032101-A032105, A035353, A038075, A038076

rooted trees, asymmetric (2): A038077, A038079, A038081-A038093, A048829-A048832, A052301, A052325, A055327-A055333

rooted trees, AVL: A006265, A029758, A036662, A134306, A143897, A228152, A228153, A228155

rooted trees, B-trees, A014535, A037026

rooted trees, binary (1): A000108 (Catalan numbers), A000671, A001190* (Wedderburn-Etherington numbers), A001699, A002572, A002844, A004019*

rooted trees, binary (2): A005588, A006223, A006365, A006679, A014167, A014168, A014169, A014171, A019275, A035010, A035102, A036602

rooted trees, binary (3): A036587, A036588, A036589, A036590, A036591, A036592, A036593, A036594, A036595, A036596, A036597, A036589

rooted trees, binary (4): A036599, A036600, A036601, A036656-A036658, A036661, A036774*, A063895

rooted trees, binary, see also: rooted trees, AVL; rooted trees, red-black

rooted trees, boron, A000671*

rooted trees, by generators, A007151, A108521*, A108522-A108525

rooted trees, by internal nodes, A108530

rooted trees, carbon, A000678

rooted trees, chiral planted, A005628

rooted trees, codes for, A005517, A005518

rooted trees, composite binary, A035102

rooted trees, constant, A051491, A051492, A051496

rooted trees, directed, A006964*

rooted trees, evolutionary, A007151

rooted trees, fixed points in, A005200*, A005202

rooted trees, game, A048829, A048830, A048831, A048832

rooted trees, genealogical, A003686

rooted trees, Greg, A005264*, A048160, A052300*, A052301

rooted trees, height 02, A000041 (partition numbers), A000110 (Bell numbers), A000551*

rooted trees, height 03, A000235*, A000258, A000552*, A001383, A001970, A036371, A036443, A036627, A036634, A036641, A038082, A048808, A050351

rooted trees, height 04 (1): A000299*, A000307, A000553*, A001384, A007713, A036372, A036419, A036587, A036593, A036609, A036615

rooted trees, height 04 (2): A036621, A036628, A036635, A036642, A038084, A038088, A048809, A050352

rooted trees, height 05 (1): A000342*, A000357, A001385, A007714, A036588, A036373, A036420, A036594, A036610, A036616, A036622

rooted trees, height 05 (2): A036629, A036636, A036643, A036662, A038085, A038089, A048810, A050353

rooted trees, height 06 (1): A000393*, A000405, A034823, A036589, A036374, A036421, A036595, A036611, A036617, A036623, A036630

rooted trees, height 06 (2): A036637, A036644, A038085, A038090, A048811

rooted trees, height 07 (1): A000418*, A001669, A034824, A036590, A036375, A036422, A036596, A036612, A036618, A036624, A036631

rooted trees, height 07 (2): A036638, A036645, A038086, A038091, A048812

rooted trees, height 08 (1): A000429*, A034825, A036376, A036423, A036591, A036597, A036613, A036619, A036625, A036632, A036639

rooted trees, height 08 (2): A036646, A038087, A038092, A048813

rooted trees, height 09, A034826, A036647, A036424, A036592, A036598, A036614, A036620, A036626, A036633, A048814

rooted trees, height 10, A036425, A036599, A048815

rooted trees, height 11, A036426, A036600

rooted trees, height 12, A036427, A036601

rooted trees, height of (1): A001699, A001853, A001854, A001864, A002658, A003686, A005588, A006223, A006893, A007715, A036370

rooted trees, height of (2): A036437, A036606, A036607, A036608, A038081, A038093, A048816, A072638

rooted trees, Husimi, A000237, A035082*, A035086, A035087*, A035351, A035352, A035353, A035357

rooted trees, hybrid binary, A007863, A011270, A011272, A011274

rooted trees, identity: see rooted trees, asymmetric

rooted trees, increasing: A008292

rooted trees, involution: A032035, A091481*, A091486*, A091488

rooted trees, lableling (Goebel), A061773, A061775, A005517, A005518

rooted trees, leaves, (cont): A055897

rooted trees, leaves, A003227, A008292, A055277*, A055278-A055289, A055302*, A055303-A055313, A055327-A055333

rooted trees, linear, see rooted trees, planar, planted

rooted trees, M-type, A006959, A052315

rooted trees, matched, A005750, A005753, A005754

rooted trees, nodes, A055544

rooted trees, noncrossing, A006629, A023053, A030980, A030981, A030982, A030983, A045721, A045722, A045737, A045738

rooted trees, normalized total height, A000435, A001863

rooted trees, of subsets, A005804, A005172, A036249*, A048802*

rooted trees, ordered, see: rooted trees, planar

rooted trees, oriented, A000151*, A005750, A005753, A005754

rooted trees, partially labeled, A000107, A000444, A000524, A000525

rooted trees, permutation, A005355, A050383*

rooted trees, phylogenetic, A000311, A005804, A006677, A006678, A006679

rooted trees, planar, A000758, A000957, A000958, A001895, A003239*, A007852-A007860, A014300, A014301, A022553, A032010, A032028, A033297, A047891, A106361, A106362

rooted trees, planar, dyslexic (1): A032047, A032048, A032065, A032066, A032068, A032101-A032105, A032119, A032128, A032129*

rooted trees, planar, dyslexic (2): A032132, A032133, A038035*

rooted trees, planar, planted, A000108* (Catalan numbers), A032009, A032027, A032030, A050351, A050352, A050353, A014486

rooted trees, plane, encodings of , sequences related to :

rooted trees, plane, encodings of, (For the subsets of A014486 the sequence in parentheses gives the positions therein.)

rooted trees, plane, encoded as totally balanced binary strings: (01) A014486*, A057517 (A057518), A057119 (A057120), A057122 (A057123), A057547 (A057548), A061855 (A061856)

rooted trees, plane, encoded as totally balanced binary strings: (02) A075165 (A075161), A080069 (A080068), A080118 (A080119), A080263 (A080265), A080293 (A080295), A080299 (A080298)

rooted trees, plane, encoded as totally balanced binary strings: (03) A080973 (A080975), A080971 (A080970), A080981 (A080980), A081292 (A081291), A083932 (A083934), A083936 (A083930),

rooted trees, plane, encoded as totally balanced binary strings: (04) A083937 (A072795), A083939 (A083938), A083941 (A083940), A002542 (A083942), A084107 (A084108), A085224 (A085223)

rooted trees, planted, A003227, A005202, A006677, A006678, A006679, A006894, A007151

rooted trees, pointed, A000107*, A000243, A000312*, A008295

rooted trees, powers of enumerator, A000106, A000242, A000300, A000343, A000395, A000439, A000529

rooted trees, prime binary, A035010

rooted trees, projective plane: A006079, A006080*, A066317

rooted trees, quartic planted, A000598

rooted trees, red-black: A001131, A001137, A001138, A027383

rooted trees, search, A007077 , A007078, A019497-A019501

rooted trees, series-reduced planted (1): A000669, A001678*, A001859, A001860, A031148, A032030, A032068, A032105, A032119

rooted trees, series-reduced planted (2): A032132, A032133, A050381

rooted trees, series-reduced, A000311*, A001679*, A005804, A005805, A006677, A058735, A058737, A059123*, A007827*

rooted trees, spanning, A030438

rooted trees, steric planted, A000625, A000628

rooted trees, symmetries in planted, A003609, A003611, A003613, A003615, A007135, A007136

rooted trees, ternary, A000598*, A002658, A006894, A019497, A036370-A036376, A036419-A036427, A036437, A036443

rooted trees, triangle, A008295, A033185, A034781, A036370, A036437, A036602, A036606, A036607, A036608

rooted trees, trimmed, A002955*, A052318*, A052319

rooted trees, trimmed, see also: trees, with a forbidden limb

rooted trees, unary-binary, A002658, A029766*, A072638

rooted trees, with a forbidden limb, A002955, A014267, A014276

rooted trees, with(out) a primary branch, A027415, A027416

rooted trees: see also (1): A000226, A001257, A003120, A003238, A005373, A006850, A006871, A006900, A006930, A007439, A007562,

rooted trees: see also (2): A027852, A029855, A032305, A036765-A036778, A001257, A050395, A050396, A074045

rooted trees: see also mobiles

rooted trees: see also trees

Roots, n-th root of x, decimal expansion of :

Decimal expansion of the n-th root of x = 5, n = 6..20: A011200 ... A011214 ; x = 6, n = 6..20: A011215 ... A011229

x = 7, n = 6..20: A011230 ... A011244 ; x = 8, n = 6 .. 20: A011245 ... A011259

x = 9, n = 7..19: A011261 ... A011273 (only odd n; only every other A-number.)

x = 10, n = 6..20: A011275 ... A011289 ; x = 11, n = 6..20: A011290 ... A011304 ; x = 12, n = 6 .. 20: A011305 ... A011319 ;

x = 13, n = 6..20: A011320 ... A011334 ; x = 14, n = 6..20: A011335 ... A011349 ; x = 15 ; n = 6 ... 20: A011350 ... A011364.

x = 16, n = 6..20: A011365 ... A011379 ; x = 17, n = 6..20: A011380 ... A011394  ; x = 18 ; n = 6 ... 20: A011395 ... A011409.

x = 19, n = 6..20: A011410 ... A011424 ; x = 20, n = 6..20: A011425 ... A011439.

Decimal expansion of the n-th root of n: A011439 (n = 20), ..., A011449 (n = 30), ..., A011459 (n = 40), ..., A011469 (n = 50),

... A011479 (n = 60), ..., A011489 (n = 70), ..., A011499 (n = 80), ..., A011509 (n = 90), ..., A011519 (n = 100).

rotation distance: A005152
Rose Windows: see Index entries for sequences related to stained glass windows
rough numbers: see smooth numbers
row sums of a triangle, Maple code for: A151615
Rowland's prime-generating sequence: A106108*, A132199*, A137613, A191304
Rowland's prime-generating sequence: see also A084662, A084663, A134734, A134736, A134743, A134744, A135506, A139759, A141537, A166944, A166945, A167168, A167170, A167195, A167197, A167493, A167494, A167495, A168143, A168144
royal paths in a lattice: A006318*

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