Expansion of e.g.f. exp(x+x^3+x^5).

Terms

a(0) =1a(1) =1a(2) =1a(3) =7a(4) =25a(5) =181a(6) =1201a(7) =5251a(8) =57457a(9) =469225a(10) =4340161a(11) =50118751a(12) =412902601a(13) =5544552157a(14) =69259632625a(15) =816044592091