A226286 [n/2]!*[(n+1)/2]!*C([n/2],5)*C([(n+1)/2],5).

0, 0, 0, 0, 0, 0, 0, 0, 0, 14400, 518400, 18662400, 457228800, 11202105600, 238978252800, 5098202726400, 103238605209600, 2090581755494400, 41811635109888000, 836232702197760000, 16864026160988160000

Offset

1,10

Comments

Number of permutations of n elements with 10 odd displacements.

Column 6 of A226288.

Column k=10 of A145893, a diagonal of A145894. - Alois P. Heinz, May 29 2014

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Crossrefs

Sequence in context: A190469 A237372 A250851 * A203729 A144649 A166371

Adjacent sequences: A226283 A226284 A226285 * A226287 A226288 A226289

Keyword

nonn

Author

R. H. Hardin, connection of formula with combinatoric problem via N. J. A. Sloane in the Sequence Fans Mailing List, Jun 02 2013

Status

approved