Expansion of 1/sqrt(1 - 2*x - 63*x^2).

Terms

a(0) =1a(1) =1a(2) =33a(3) =97a(4) =1729a(5) =8001a(6) =105441a(7) =627873a(8) =6989697a(9) =48363649a(10) =488206753a(11) =3701949153a(12) =35289342529a(13) =283146701761