Expansion of e.g.f.: log(1 + exp(x)*x).

Terms

a(0) =0a(1) =1a(2) =1a(3) =-1a(4) =-2a(5) =9a(6) =6a(7) =-155a(8) =232a(9) =3969a(10) =-20870a(11) =-118779a(12) =1655028a(13) =1610257a(14) =-143697722a(15) =522358005a(16) =13332842416a(17) =-138189937791