Expansion of 1/(1 - 4*x - 4*x^2)^(7/2).

Terms

a(0) =1a(1) =14a(2) =140a(3) =1176a(4) =8904a(5) =62832a(6) =421344a(7) =2718144a(8) =17008992a(9) =103847744a(10) =621292672a(11) =3654187264a(12) =21182563584a(13) =121263109632a(14) =686660004864