Expansion of 1/(1 - 4*x*(1+x)^2)^(5/2).

Terms

a(0) =1a(1) =10a(2) =90a(3) =710a(4) =5250a(5) =37072a(6) =253330a(7) =1688640a(8) =11039370a(9) =71049200a(10) =451429880a(11) =2837585940a(12) =17674206130a(13) =109224234420a(14) =670398280520