A159145 Number of permutations of 1..n containing the relative rank sequence { 234615 } at any spacing.

1, 37, 894, 18205, 342527, 6220027, 111624374, 2007591333, 36508865444, 675368719140

Offset

6,2

Comments

Same series for 516432 261345 543162 314562 463215 265413 512364

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: A159102 A159135 A159101 * A159124 A159114 A159154

Adjacent sequences: A159142 A159143 A159144 * A159146 A159147 A159148

Keyword

nonn

Author

R. H. Hardin Apr 05 2009

Status

approved