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A187582
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Rank transform of the sequence 3*floor(n/2); complement of A187583.
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2
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1, 3, 4, 7, 8, 11, 12, 14, 15, 18, 19, 21, 22, 25, 26, 29, 30, 33, 34, 36, 37, 39, 40, 43, 44, 47, 48, 51, 52, 55, 56, 58, 59, 61, 62, 65, 66, 69, 70, 73, 74, 77, 78, 80, 81, 83, 84, 87, 88, 91, 92, 94, 95, 98, 99, 102, 103, 105, 106, 109, 110, 113, 114, 117, 118, 120, 121, 123, 124, 127, 128, 131, 132, 135, 136, 138, 139, 141, 142, 145, 146, 149, 150, 153, 154, 157, 158, 160, 161
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OFFSET
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1,2
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COMMENTS
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See A187224.
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LINKS
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Table of n, a(n) for n=1..89.
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MATHEMATICA
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seqA = Table[3*Floor[n/2], {n, 1, 220}]
seqB = Table[n, {n, 1, 220}]; (*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]] (*A187582*)
Complement[Range[Length[seqA]], limseqU] (*A187583*)
(*by Peter J. C. Moses, Mar 11 2011*)
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CROSSREFS
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Cf. A187224, A187583.
Sequence in context: A332059 A229081 A070874 * A288553 A295771 A285503
Adjacent sequences: A187579 A187580 A187581 * A187583 A187584 A187585
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KEYWORD
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nonn
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AUTHOR
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Clark Kimberling, Mar 11 2011
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STATUS
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approved
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