Expansion of (1+6*x)/((1-2*x-x^2)*(1-x)^2).

Terms

a(0) =1a(1) =10a(2) =36a(3) =104a(4) =273a(5) =686a(6) =1688a(7) =4112a(8) =9969a(9) =24114a(10) =58268a(11) =140728a(12) =339809a(13) =820438a(14) =1980784a(15) =4782112a(16) =11545121a(17) =27872474a(18) =67290196a(19) =162453000a(20) =392196337a(21) =946845822a(22) =2285888136a(23) =5518622256a(24) =13323132817a(25) =32164888066a(26) =77652909132a(27) =187470706520a(28) =452594322369