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

Terms

a(0) =1a(1) =5a(2) =26a(3) =141a(4) =799a(5) =4736a(6) =29371a(7) =190497a(8) =1291020a(9) =9131275a(10) =67310847a(11) =516369838a(12) =4116416797a(13) =34051164985a(14) =291871399682