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

Terms

a(0) =1a(1) =6a(2) =22a(3) =76a(4) =262a(5) =916a(6) =3260a(7) =11800a(8) =43334a(9) =161028a(10) =604052a(11) =2283048a(12) =8681116a(13) =33171144a(14) =127260088a(15) =489870896a(16) =1891057222a(17) =7317881444a(18) =28378110628a(19) =110251755656a(20) =429040567732