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) =0a(7) =2a(8) =1a(9) =1a(10) =4a(11) =2a(12) =4a(13) =9a(14) =4a(15) =14a(16) =20a(17) =15a(18) =43a(19) =48a(20) =55a(21) =127a(22) =127a(23) =199a(24) =363a(25) =379a(26) =684a(27) =1048a(28) =1229a(29) =2263