Norm of coefficients in the expansion of 1/(1 - 2*x - i*x^2), where i is the imaginary unit.

A218134

Norm of coefficients in the expansion of 1/(1 - 2*x - i*x^2), where i is the imaginary unit.

Terms

    a(0) =1a(1) =4a(2) =17a(3) =80a(4) =369a(5) =1700a(6) =7841a(7) =36160a(8) =166753a(9) =768996a(10) =3546289a(11) =16354000a(12) =75417809a(13) =347795396a(14) =1603886913a(15) =7396455680a(16) =34109360321a(17) =157298104900a(18) =725393076049

External references