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

Terms

a(0) =1a(1) =1a(2) =-1a(3) =0a(4) =1a(5) =0a(6) =-2a(7) =1a(8) =3a(9) =-4a(10) =-3a(11) =11a(12) =-2a(13) =-22a(14) =21a(15) =32a(16) =-72a(17) =-18a(18) =180a(19) =-95a(20) =-350a(21) =496a(22) =449a(23) =-1542a(24) =125a(25) =3638a(26) =-3161a(27) =-6393a(28) =12780a(29) =5636