Expansion of e.g.f. exp(3*(exp(x) - 1) - 2*x).

Terms

a(0) =1a(1) =1a(2) =4a(3) =13a(4) =61a(5) =304a(6) =1747a(7) =10945a(8) =74830a(9) =550687a(10) =4335109a(11) =36272086a(12) =320980645a(13) =2991373597a(14) =29253607780a(15) =299258487553