Expansion of e.g.f.: exp(exp(x) - 4*x - 1).

Terms

a(0) =1a(1) =-3a(2) =10a(3) =-35a(4) =127a(5) =-472a(6) =1787a(7) =-6855a(8) =26572a(9) =-103765a(10) =407695a(11) =-1608378a(12) =6369117a(13) =-25271183a(14) =100542930a(15) =-400114103a(16) =1597052419a(17) =-6359524256a(18) =25481982047a(19) =-101103395443a(20) =409291679676