A107094 G.f. A(x) = (1+x)*G(x) = G(G(x)) where G(x) = g.f. of A067145.

0, 1, 2, 0, 2, -10, 56, -350, 2390, -17544, 136846, -1124794, 9681832, -86864206, 809349770, -7808871616, 77836952362, -800020218314, 8465353891808, -92095165316342, 1028910894313302, -11793279016419864, 138555915579090830, -1667276484211383794, 20533971488794963168

Offset: 0

Author

Paul D. Hanna, May 12 2005

Keywords

• eigen
• sign

Crossrefs

Cf. A067145.

Formula

G.f. satisfies: A(x) = (1+x)*A( A(x)/(1+x) )/(1+x + A(x)).

Extensions

Offset changed to 0 by Georg Fischer, Jun 07 2025