G.f. satisfies A(x) = 1 + x*A(x)^3 + x^5*A(x)^13.

Terms

a(0) =1a(1) =1a(2) =3a(3) =12a(4) =55a(5) =274a(6) =1444a(7) =7923a(8) =44803a(9) =259325a(10) =1529008a(11) =9151327a(12) =55454164a(13) =339543312a(14) =2097460255a(15) =13055579858a(16) =81803671623a(17) =515552408141