A158430 Number of permutations of 1..n containing the relative rank sequence { 43125 } at any spacing.

1, 26, 459, 7035, 101994, 1455426, 20884054, 305260133, 4584487108, 71178802896, 1147757161265

Offset

5,2

Comments

Same series for 32451 34215 15423 51243 23541 14532 52134

Links

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

Eric Weisstein's World of Mathematics, Permutation Pattern

Crossrefs

A056986 A158005

Sequence in context: A021974 A158433 A158423 * A158435 A158424 A020594

Adjacent sequences: A158427 A158428 A158429 * A158431 A158432 A158433

Keyword

nonn

Author

R. H. Hardin Mar 18 2009

Status

approved