A225971 Number of permutations of [n] having exactly 10 strong fixed blocks.

1, 37, 777, 12270, 163175, 1942929, 21528521, 228041846, 2356747034, 24163001708, 249403489710, 2627573750274, 28640525859359, 327328342356269, 3972468538438185, 51748509141715110, 729042517121700175, 11143605769040625033, 184620160995781020415

Offset: 28

Author

Alois P. Heinz, May 22 2013

Keywords

• nonn

Comments

See A186373 for the definition of strong fixed blocks.

Links

• Alois P. Heinz, Table of n, a(n) for n = 28..470

Crossrefs

Column k=10 of A186373.

Formula

a(n) ~ 9 * n! / n^26. - Vaclav Kotesovec, Aug 29 2014