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A158431 Number of permutations of 1..n containing the relative rank sequence { 45231 } at any spacing. 0
1, 26, 458, 6995, 101027, 1436898, 20572392, 300418660, 4513021536, 70158846231, 1133525183816, 19092510077724 (list; graph; refs; listen; history; text; internal format)
OFFSET

5,2

COMMENTS

Same series for 53421 13245 12435 54231 21435 13254 53412

LINKS

Table of n, a(n) for n=5..16.

Eric Weisstein's World of Mathematics, Permutation Pattern

CROSSREFS

A056986 A158005

Sequence in context: A021984 A025954 A158436 * A158432 A021974 A158433

Adjacent sequences:  A158428 A158429 A158430 * A158432 A158433 A158434

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 18 2009

STATUS

approved

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Last modified May 20 21:39 EDT 2022. Contains 353876 sequences. (Running on oeis4.)