Expansion of (1+4*x)/(1-8*x+8*x^2).

Terms

a(0) =1a(1) =12a(2) =88a(3) =608a(4) =4160a(5) =28416a(6) =194048a(7) =1325056a(8) =9048064a(9) =61784064a(10) =421888000a(11) =2880831488a(12) =19671547904a(13) =134325731328a(14) =917233467392