Expansion of (1/sqrt(1-6*x+x^2)-1/(1-x))/2.

Terms

a(0) =0a(1) =1a(2) =6a(3) =31a(4) =160a(5) =841a(6) =4494a(7) =24319a(8) =132864a(9) =731281a(10) =4048726a(11) =22523359a(12) =125797984a(13) =704966809a(14) =3961924126a(15) =22321190911a(16) =126027618304a(17) =712917362209