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

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =0a(5) =1a(6) =2a(7) =1a(8) =1a(9) =4a(10) =4a(11) =3a(12) =9a(13) =14a(14) =12a(15) =22a(16) =43a(17) =49a(18) =66a(19) =130a(20) =186a(21) =234a(22) =406a(23) =663a(24) =884a(25) =1362a(26) =2303a(27) =3347a(28) =4884a(29) =8049