Expansion of (1+x) / (1-x-4*x^2+2*x^3).

Terms

a(0) =1a(1) =2a(2) =6a(3) =12a(4) =32a(5) =68a(6) =172a(7) =380a(8) =932a(9) =2108a(10) =5076a(11) =11644a(12) =27732a(13) =64156a(14) =151796a(15) =352956a(16) =831828a(17) =1940060a(18) =4561460a(19) =10658044a(20) =25023764a(21) =58533020a(22) =137311988a(23) =321396540a(24) =753578452a(25) =1764540636a(26) =4136061364a(27) =9687067004a(28) =22702231188a(29) =53178376476