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

Terms

a(0) =1a(1) =1a(2) =-1a(3) =4a(4) =-3a(5) =-44a(6) =595a(7) =-5214a(8) =36953a(9) =-176840a(10) =-498969a(11) =31239550a(12) =-605916971a(13) =9001842708a(14) =-110410388101a(15) =998140500826