G.f. A(x) satisfies: Series_Reversion( A(x)/(1+x)^2 ) = A(x)/(1-x)^2.

A277038

G.f. A(x) satisfies: Series_Reversion( A(x)/(1+x)^2 ) = A(x)/(1-x)^2.

Terms

    a(0) =1a(1) =1a(2) =-4a(3) =56a(4) =-1452a(5) =58368a(6) =-3339220a(7) =257978168a(8) =-25928865116

External references