A159164 Number of permutations of 1..n containing the relative rank sequence { 254163 } at any spacing.

1, 37, 895, 18269, 344845, 6284126, 113143395, 2040278015, 37168888376

Offset

6,2

Comments

Same series for 361452 416325 523614

Links

Table of n, a(n) for n=6..14.

Eric Weisstein's World of Mathematics, Permutation Pattern

Crossrefs

A056986 A158005 A158423

Sequence in context: A159170 A159167 A159169 * A159105 A159160 A159161

Adjacent sequences: A159161 A159162 A159163 * A159165 A159166 A159167

Keyword

nonn,changed

Author

R. H. Hardin Apr 05 2009

Status

approved