A279295 Number of permutations of [n] having exactly six (possibly overlapping) doubledescents.

1, 16, 1138, 25999, 775195, 18523314, 463088628, 11068300437, 268537592975, 6514804501312, 160541447975710, 4013204668037233, 102267326625073183, 2658365720541599806, 70614284743773530148, 1917874812704472161265, 53294689741358893762638

Offset: 8

Author

Alois P. Heinz, Dec 09 2016

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 8..460

Crossrefs

Column k=6 of A162975.