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

Terms

a(0) =1a(1) =2a(2) =7a(3) =21a(4) =66a(5) =205a(6) =639a(7) =1990a(8) =6199a(9) =19309a(10) =60146a(11) =187349a(12) =583575a(13) =1817782a(14) =5662223a(15) =17637301a(16) =54938562a(17) =171128541a(18) =533049583a(19) =1660400166a(20) =5171992999a(21) =16110279997a(22) =50182032658a(23) =156312391973a(24) =486898648583