A159131 Number of permutations of 1..n containing the relative rank sequence { 156423 } at any spacing.

1, 37, 892, 18104, 339402, 6142870, 109946165, 1973820605, 35862423922, 663394959580

Offset

6,2

Comments

Same series for 324651 453126 621354

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: A159117 A159084 A159133 * A159144 A159092 A159142

Adjacent sequences: A159128 A159129 A159130 * A159132 A159133 A159134

Keyword

nonn

Author

R. H. Hardin Apr 05 2009

Status

approved