Expansion of e.g.f. exp(x * (3 - 2*exp(x))).

Terms

a(0) =1a(1) =1a(2) =-3a(3) =-17a(4) =-7a(5) =331a(6) =1669a(7) =-2561a(8) =-82447a(9) =-411821a(10) =1602941a(11) =38344615a(12) =209694121a(13) =-1133998085a(14) =-29424823819a(15) =-194721585329a(16) =978185645537