G.f. A(x) satisfies: A(x) = Sum_{-oo..+oo} (x - A(x)^n)^(n+1).

Terms

a(0) =1a(1) =-1a(2) =3a(3) =-8a(4) =25a(5) =-82a(6) =279a(7) =-974a(8) =3471a(9) =-12582a(10) =46258a(11) =-172092a(12) =646667a(13) =-2450920a(14) =9358703a(15) =-35970203a(16) =139053789a(17) =-540332534a(18) =2109336474a(19) =-8268739720a(20) =32536551783a(21) =-128468095943a(22) =508841232024