Expansion of e.g.f. exp(log(1+x)^2).

Terms

a(0) =1a(1) =0a(2) =2a(3) =-6a(4) =34a(5) =-220a(6) =1688a(7) =-14868a(8) =147684a(9) =-1631376a(10) =19821912a(11) =-262573080a(12) =3764276712a(13) =-58044604176a(14) =957653604672