Expansion of (1 + 3*x) / ((1 - 2*x)*sqrt(1 - 4*x)).

Terms

a(0) =1a(1) =7a(2) =26a(3) =90a(4) =310a(5) =1082a(6) =3844a(7) =13892a(8) =50950a(9) =189130a(10) =708876a(11) =2677452a(12) =10175356a(13) =38863780a(14) =149045960a(15) =573559240a(16) =2213551430a(17) =8563950250a(18) =33203854460a(19) =128978378620a(20) =501839077460