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

Terms

a(0) =1a(1) =-2a(2) =5a(3) =-13a(4) =36a(5) =-101a(6) =293a(7) =-848a(8) =2523a(9) =-7365a(10) =22402a(11) =-64395a(12) =205285a(13) =-541802a(14) =2057617a(15) =-3403993a(16) =28685420a(17) =43885023a(18) =824532745a(19) =4878097904a(20) =44263112047a(21) =357891860463