OFFSET
0,3
FORMULA
a(n) = n! * [x^n] exp(x/(1-x)^(n+1)).
MATHEMATICA
Table[n!*SeriesCoefficient[Exp[x/(1-x)^(n+1)], {x, 0, n}], {n, 0, 20}] (* Vaclav Kotesovec, Sep 29 2017 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Sep 29 2017
STATUS
approved