A159176 Number of permutations of 1..n containing the relative rank sequence { 1254367 } at any spacing.

1, 50, 1578, 40883, 958710, 21348000, 463701959, 9987145063, 215540164792, 4694045733165

Offset

7,2

Comments

Same series (among rank sequences with inversion = reversal) for 2154376

Links

Table of n, a(n) for n=7..16.

Eric Weisstein's World of Mathematics, Permutation Pattern

Crossrefs

A056986 A158005 A158423

Sequence in context: A004351 A229316 A159177 * A159181 A159175 A159186

Adjacent sequences: A159173 A159174 A159175 * A159177 A159178 A159179

Keyword

nonn

Author

R. H. Hardin Apr 05 2009

Status

approved