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A064639 Positions of non-crossing fixed-point-free involutions encoded by A014486 (after reflection) in A055089. Permutation of A064640. 1
0, 1, 7, 23, 127, 143, 415, 659, 719, 5167, 5183, 5455, 5699, 5759, 16687, 16703, 26815, 36899, 36959, 28495, 38579, 40031, 40319, 368047, 368063, 368335, 368579, 368639, 379567, 379583, 389695, 399779, 399839, 391375, 401459, 402911, 403199 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
MAPLE
map(PermRevLexRank, map(NonCrossingTransposRev, A014486)); NonCrossingTransposRev := n -> convert(NonCrossingTransposAux(deepreverse(binexp2pars(n)), 1), 'permlist', binwidth(n));
CROSSREFS
Maple procedure deepreverse given in A057502, for others, follow A064638. Same sequence sorted: A064640.
Sequence in context: A267926 A228698 A064640 * A064638 A082021 A227254
KEYWORD
nonn
AUTHOR
Antti Karttunen, Oct 15 2001
STATUS
approved

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Last modified May 21 19:35 EDT 2024. Contains 372738 sequences. (Running on oeis4.)