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 A187835 Rank transform of the sequence floor(3n/2-2/3); complement of A187836. 2
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 OFFSET 1,2 COMMENTS A187835 is the rank transform of the sequence A007494 of nonnegative integers congruent to 0 or 2 mod 3.  See A187224 for a discussion of rank transforms. LINKS MATHEMATICA seqA = Table[Floor[3n/2-2/3], {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]] (*A187835*) Complement[Range[Length[seqA]], limseqU]  (*A187836*) (*by Peter Moses, Mar 13 2011*) CROSSREFS Cf. A187224, A187836. Sequence in context: A091934 A178482 A024515 * A184820 A189521 A138971 Adjacent sequences:  A187832 A187833 A187834 * A187836 A187837 A187838 KEYWORD nonn AUTHOR Clark Kimberling, Mar 13 2011 STATUS approved

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