Expansion of sqrt((1-3*x) / (1-7*x)^5).

Terms

a(0) =1a(1) =16a(2) =187a(3) =1908a(4) =18015a(5) =161700a(6) =1400385a(7) =11808480a(8) =97533075a(9) =792374720a(10) =6350977457a(11) =50334074972a(12) =395137260609