A158426 Number of permutations of 1..n containing the relative rank sequence { 41523 } at any spacing.

1, 26, 460, 7071, 102788, 1469419, 21101676, 308396208, 4627521637, 71750494216, 1155187096545

Offset

5,2

Comments

Same series for 32514 34152 25143 24513 42153 31542 35124

Links

Table of n, a(n) for n=5..15.

Eric Weisstein's World of Mathematics, Permutation Pattern

Crossrefs

A056986 A158005

Sequence in context: A158429 A158434 A158438 * A020567 A158427 A158428

Adjacent sequences: A158423 A158424 A158425 * A158427 A158428 A158429

Keyword

nonn

Author

R. H. Hardin Mar 18 2009

Status

approved