G.f. A(x) satisfies: A(x) = x*exp(-A(-x) + A(-x^2)/2 - A(-x^3)/3 + A(-x^4)/4 - A(-x^5)/5 + ...).

Terms

a(0) =0a(1) =1a(2) =1a(3) =-1a(4) =-2a(5) =2a(6) =6a(7) =-5a(8) =-18a(9) =15a(10) =59a(11) =-54a(12) =-215a(13) =199a(14) =813a(15) =-744a(16) =-3135a(17) =2890a(18) =12394a(19) =-11538a(20) =-50017a(21) =46806a(22) =204893a(23) =-192451a(24) =-849681a(25) =800974a(26) =3560927a(27) =-3367656a(28) =-15058478a(29) =14279426