Expansion of 2*(x^2-9*x+15) / ((1+x)*(1-3*x+x^2)).

Terms

a(0) =30a(1) =42a(2) =146a(3) =346a(4) =942a(5) =2430a(6) =6398a(7) =16714a(8) =43794a(9) =114618a(10) =300110a(11) =785662a(12) =2056926a(13) =5385066a(14) =14098322a(15) =36909850a(16) =96631278a(17) =252983934a(18) =662320574a(19) =1733977738a(20) =4539612690a(21) =11884860282a(22) =31114968206a(23) =81460044286a(24) =213265164702a(25) =558335449770