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 - 2*x - sqrt(1 - 8*x + 4*x^2))/(2*x).

A372214

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 - 2*x - sqrt(1 - 8*x + 4*x^2))/(2*x).

Terms

    a(0) =1a(1) =4a(2) =40a(3) =487a(4) =6376a(5) =86629a(6) =1203823a(7) =16984678a(8) =242274280a(9) =3484593028a(10) =50444222665a(11) =734066291974

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