Expansion of e.g.f. 1/(1 - (exp(x) - 1)^5).

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =120a(6) =1800a(7) =16800a(8) =126000a(9) =834120a(10) =8731800a(11) =229191600a(12) =6352632000a(13) =143603580120