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A187474
Rank transform of the sequence floor(n*(Pi-2)); complement of A187475.
2
1, 3, 4, 6, 8, 9, 11, 13, 15, 16, 18, 19, 21, 22, 25, 26, 28, 30, 31, 33, 35, 36, 38, 40, 41, 43, 44, 46, 48, 50, 51, 53, 55, 56, 58, 60, 62, 63, 65, 67, 68, 70, 72, 73, 75, 77, 78, 80, 81, 84, 85, 87, 88, 90, 91, 93, 95, 97, 98, 100, 102, 103, 105, 107, 109, 110, 112, 113
OFFSET
1,2
COMMENTS
See A187224.
MATHEMATICA
m = Pi-2;
seqA = Table[Floor[m*n], {n, 1, 180}] (* A187320 *)
seqB = Table[n, {n, 1, 80}]; (* A000027 *)
jointRank[{seqA_, seqB_}] := {Flatten@Position[#1, {_, 1}],
Flatten@Position[#1, {_, 2}]} &[Sort@Flatten[{{#1, 1} & /@ seqA,
{#1, 2} & /@ seqB}, 1]];
limseqU = FixedPoint[jointRank[{seqA, #1[[1]]}] &, jointRank[{seqA, seqB}]][[1]] (* A187474 *)
Complement[Range[Length[seqA]], limseqU] (* A187475 *)
(* Peter J. C. Moses, Mar 10 2011 *)
CROSSREFS
Sequence in context: A061402 A330066 A047206 * A081031 A285681 A133280
KEYWORD
nonn
AUTHOR
Clark Kimberling, Mar 10 2011
STATUS
approved