A294261 E.g.f.: exp(Sum_{n>=1} A081362(n)*x^n).

1, -1, 1, -7, 49, -301, 2281, -21211, 260737, -3254329, 41086801, -589336111, 9851907121, -170708882917, 3060177746809, -60544788499651, 1298663388032641, -28777111728560881, 665551703689032097, -16413980708818538839, 428253175770218766001

Offset: 0

Author

Seiichi Manyama, Oct 26 2017

Keywords

• sign

Links

• Seiichi Manyama, Table of n, a(n) for n = 0..437

Crossrefs

Main diagonal of A294289.

Cf. A058892, A293840.

Formula

a(0) = 1 and a(n) = (n-1)! * Sum_{k=1..n} k*A081362(k)*a(n-k)/(n-k)! for n > 0.