Expansion of 1/(4*sqrt(1-4*x) - 3).

Terms

a(0) =1a(1) =8a(2) =72a(3) =656a(4) =5992a(5) =54768a(6) =500688a(7) =4577568a(8) =41851560a(9) =382641200a(10) =3498428272a(11) =31985610720a(12) =292439802256