A158428 Number of permutations of 1..n containing the relative rank sequence { 42513 } at any spacing.

1, 26, 461, 7104, 103479, 1481275, 21284288, 311031666, 4663993186, 72241115375, 1161657944287

Offset

5,2

Comments

Same series for 24153 31524 35142

Links

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

Eric Weisstein's World of Mathematics, Permutation Pattern

Crossrefs

A056986 A158005

Sequence in context: A158426 A020567 A158427 * A158425 A020566 A021724

Adjacent sequences: A158425 A158426 A158427 * A158429 A158430 A158431

Keyword

nonn

Author

R. H. Hardin, Mar 18 2009

Status

approved