A294047 a(n) = n! * [x^n] exp(1/(1-x)^n - 1).

1, 1, 10, 195, 6136, 280745, 17452296, 1406162695, 141881576320, 17464107109329, 2568781033444000, 444027365181074411, 88960718926056936960, 20419945656807380230105, 5317219394033953475875456, 1557341699638685065316319375, 509241278697083918035944964096

Offset: 0

Author

Seiichi Manyama, Oct 22 2017

Keywords

• nonn

Links

• Seiichi Manyama, Table of n, a(n) for n = 0..257

Crossrefs

Main diagonal of A294046.

Programs

Maple

S:=series(exp(1/(1-x)^n-1),x,31):
seq(n!*coeff(S,x,n),n=0..30); # Robert Israel, Oct 22 2017

Mathematica

Table[n!*SeriesCoefficient[Exp[1/(1-x)^n - 1], {x, 0, n}], {n, 0, 20}] (* Vaclav Kotesovec, Oct 22 2017 *)