A159134 Number of permutations of 1..n containing the relative rank sequence { 163542 } at any spacing.

1, 37, 894, 18198, 342114, 6205561, 111229153, 1998237674, 36306623166, 671248950345

Offset

6,2

Comments

Same series for 245361 532416 614235.

Links

Table of n, a(n) for n=6..15.

Eric Weisstein's World of Mathematics, Permutation Pattern

Crossrefs

Cf. A056986, A158005, A158423.

Sequence in context: A159171 A159097 A159099 * A159104 A159120 A159126

Adjacent sequences: A159131 A159132 A159133 * A159135 A159136 A159137

Keyword

nonn

Author

R. H. Hardin, Apr 05 2009

Status

approved