G.f.: A(x) satisfies: [x^n] A(x)^(n^2-2*n+2) = 0 for n>=2.

A185072

G.f.: A(x) satisfies: [x^n] A(x)^(n^2-2*n+2) = 0 for n>=2.

Terms

    a(0) =1a(1) =1a(2) =-2a(3) =6a(4) =-28a(5) =70a(6) =-1446a(7) =-22302a(8) =-855032a(9) =-33435486a(10) =-1541257250a(11) =-80299386706

External references