Expansion of x*(4+5*x)/( (1-4*x)*(1 + x + x^2) ).

Terms

a(0) =0a(1) =4a(2) =17a(3) =63a(4) =256a(5) =1025a(6) =4095a(7) =16384a(8) =65537a(9) =262143a(10) =1048576a(11) =4194305a(12) =16777215a(13) =67108864a(14) =268435457a(15) =1073741823a(16) =4294967296a(17) =17179869185a(18) =68719476735a(19) =274877906944