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

Terms

a(0) =1a(1) =14a(2) =140a(3) =1190a(4) =9170a(5) =66122a(6) =454328a(7) =3009050a(8) =19359620a(9) =121664410a(10) =749879508a(11) =4546925922a(12) =27188341530a(13) =160624341990a(14) =939009926520