a(n) is equal to the n-th order Taylor polynomial (centered at 0) of G(x)^n evaluated at x = 1, where G(x) = (1 - 3*x - sqrt(1 - 10*x + 9*x^2))/(2*x) is the g.f. of A082298.

A372215

a(n) is equal to the n-th order Taylor polynomial (centered at 0) of G(x)^n evaluated at x = 1, where G(x) = (1 - 3*x - sqrt(1 - 10*x + 9*x^2))/(2*x) is the g.f. of A082298.

Terms

    a(0) =1a(1) =5a(2) =65a(3) =1013a(4) =16897a(5) =292005a(6) =5157569a(7) =92456341a(8) =1675300865a(9) =30604622405a(10) =562675808065

External references