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

Terms

a(0) =1a(1) =8a(2) =51a(3) =308a(4) =1855a(5) =11340a(6) =70665a(7) =448320a(8) =2887155a(9) =18815240a(10) =123759097a(11) =819969276a(12) =5464090177a(13) =36580917716a(14) =245837438055