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

Terms

a(0) =1a(1) =1a(2) =0a(3) =-1a(4) =3a(5) =-8a(6) =23a(7) =-89a(8) =556a(9) =-4773a(10) =44425a(11) =-397670a(12) =3060577a(13) =-12448655a(14) =-235761640a(15) =9571505555a(16) =-241952653453