A159184 Number of permutations of 1..n containing the relative rank sequence { 2574136 } at any spacing.

1, 50, 1584, 41322, 977960, 22010480, 483532996, 10531009973, 229621534324

Offset

7,2

Comments

Same series (among rank sequences with inversion = reversal) for 3724615

Links

Table of n, a(n) for n=7..15.

Eric Weisstein's World of Mathematics, Permutation Pattern

Crossrefs

A056986 A158005 A158423

Sequence in context: A159188 A159178 A159183 * A159187 A075912 A062151

Adjacent sequences: A159181 A159182 A159183 * A159185 A159186 A159187

Keyword

nonn

Author

R. H. Hardin Apr 05 2009

Status

approved