Expansion of sqrt(1-8*x).

Terms

a(0) =1a(1) =-4a(2) =-8a(3) =-32a(4) =-160a(5) =-896a(6) =-5376a(7) =-33792a(8) =-219648a(9) =-1464320a(10) =-9957376a(11) =-68796416a(12) =-481574912a(13) =-3408068608a(14) =-24343347200a(15) =-175272099840