A159171 Number of permutations of 1..n containing the relative rank sequence { 326154 } at any spacing.

1, 37, 893, 18156, 341052, 6184421, 110862103, 1992379201, 36217913135, 669946863429

Offset

6,2

Comments

Same series for 451623 421653 356124

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: A159112 A159121 A159129 * A159097 A159099 A159134

Adjacent sequences: A159168 A159169 A159170 * A159172 A159173 A159174

Keyword

nonn

Author

R. H. Hardin Apr 05 2009

Status

approved