A159185 - OEIS

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A159185

Number of permutations of 1..n containing the relative rank sequence { 2754316 } at any spacing.

0

1, 50, 1582, 41175, 971574, 21794925, 477249620, 10364068063, 225449619356

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OFFSET

7,2

COMMENTS

Same series (among rank sequences with inversion = reversal) for 2734516

LINKS

Table of n, a(n) for n=7..15.

Eric Weisstein's World of Mathematics, Permutation Pattern

CROSSREFS

A056986 A158005 A158423

Sequence in context: A159186 A159180 A159179 * A159182 A159188 A159178

Adjacent sequences: A159182 A159183 A159184 * A159186 A159187 A159188

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 05 2009

STATUS

approved