A159127 Number of permutations of 1..n containing the relative rank sequence { 154326 } at any spacing.

1, 37, 891, 18042, 337138, 6078572, 108365293, 1938295834, 35109616512, 648055261057

Offset

6,2

Comments

Same series for 623451

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: A028164 A159090 A159109 * A159141 A159089 A159139

Adjacent sequences: A159124 A159125 A159126 * A159128 A159129 A159130

Keyword

nonn

Author

R. H. Hardin Apr 05 2009

Status

approved