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

Terms

a(0) =1a(1) =2a(2) =16a(3) =100a(4) =660a(5) =4482a(6) =30886a(7) =215364a(8) =1515000a(9) =10730800a(10) =76426846a(11) =546792056a(12) =3926775646a(13) =28290272420a(14) =204375145480