G.f. A(x) satisfies: A(x) = x^2 + x^3 * exp(A(x) + A(x^2)/2 + A(x^3)/3 + A(x^4)/4 + ...).

Terms

a(0) =0a(1) =1a(2) =1a(3) =0a(4) =1a(5) =1a(6) =1a(7) =2a(8) =3a(9) =3a(10) =6a(11) =8a(12) =11a(13) =18a(14) =26a(15) =37a(16) =60a(17) =87a(18) =132a(19) =206a(20) =310a(21) =475a(22) =742a(23) =1130a(24) =1759a(25) =2737a(26) =4236a(27) =6618a(28) =10348a(29) =16139