A166042 - OEIS

A166042

Permutation of nonnegative integers: a(n) tells which integer is in the same position in the square array A163334 as where n is located in the array A163357.

0, 1, 4, 5, 6, 47, 46, 7, 8, 45, 44, 9, 14, 3, 2, 15, 16, 13, 12, 17, 18, 19, 22, 23, 24, 25, 28, 29, 42, 11, 10, 43, 40, 37, 36, 41, 30, 31, 34, 35, 72, 73, 76, 77, 66, 71, 70, 67, 68, 57, 56, 69, 38, 39, 50, 51, 52, 49, 48, 53, 54, 55, 58, 59, 60, 425, 424, 61, 62, 63, 422

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OFFSET

0,3

LINKS

A. Karttunen, Table of n, a(n) for n = 0..16383

Index entries for sequences that are permutations of the natural numbers

EXAMPLE

The top left 8 X 8 corner of A163357:

0 1 14 15 16 19 20 21

3 2 13 12 17 18 23 22

4 7 8 11 30 29 24 25

5 6 9 10 31 28 27 26

58 57 54 53 32 35 36 37

59 56 55 52 33 34 39 38

60 61 50 51 46 45 40 41

63 62 49 48 47 44 43 42

The top left 9 X 9 corner of A163334:

0 1 2 15 16 17 18 19 20

5 4 3 14 13 12 23 22 21

6 7 8 9 10 11 24 25 26

47 46 45 44 43 42 29 28 27

48 49 50 39 40 41 30 31 32

53 52 51 38 37 36 35 34 33

54 55 56 69 70 71 72 73 74

59 58 57 68 67 66 77 76 75

60 61 62 63 64 65 78 79 80

9 is in position (3,2) in A163357, while A163334(3,2) = 45. Thus a(9) = 45.

CROSSREFS

Inverse: A166041. a(n) = A163334(A163358(n)) = A163336(A163360(n)). Fixed points: A165465. Cf. also A166044.

Sequence in context: A019067 A352865 A095212 * A321772 A333435 A146968

Adjacent sequences: A166039 A166040 A166041 * A166043 A166044 A166045

KEYWORD

nonn

AUTHOR

Antti Karttunen, Oct 06 2009

STATUS

approved