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A187582 Rank transform of the sequence 3*floor(n/2); complement of A187583. 2
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

See A187224.

LINKS

Table of n, a(n) for n=1..89.

MATHEMATICA

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*)

CROSSREFS

Cf. A187224, A187583.

Sequence in context: A213373 A229081 A070874 * A288553 A295771 A285503

Adjacent sequences:  A187579 A187580 A187581 * A187583 A187584 A187585

KEYWORD

nonn

AUTHOR

Clark Kimberling, Mar 11 2011

STATUS

approved

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Last modified December 17 14:12 EST 2018. Contains 318201 sequences. (Running on oeis4.)