Expansion of (1+sqrt(1-4*x))/(5*sqrt(1-4*x)-3).

Terms

a(0) =1a(1) =4a(2) =24a(3) =148a(4) =920a(5) =5736a(6) =35808a(7) =223668a(8) =1397496a(9) =8732920a(10) =54575888a(11) =341082504a(12) =2131706864a(13) =13322959888a(14) =83267756400a(15) =520420803060