A159172 Number of permutations of 1..n containing the relative rank sequence { 326514 } at any spacing.

1, 37, 894, 18211, 342864, 6231402, 111926215, 2014564125, 36656463405, 678317048845

Offset

6,2

Comments

Same series for 431652 346125 256134 521643 415623 362154 451263

Links

Table of n, a(n) for n=6..15.

Eric Weisstein's World of Mathematics, Permutation Pattern

Crossrefs

A056986 A158005 A158423

Sequence in context: A159154 A159159 A159149 * A159165 A159168 A159147

Adjacent sequences: A159169 A159170 A159171 * A159173 A159174 A159175

Keyword

nonn

Author

R. H. Hardin Apr 05 2009

Status

approved