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

Terms

a(0) =1a(1) =1a(2) =1a(3) =4a(4) =7a(5) =13a(6) =28a(7) =53a(8) =105a(9) =211a(10) =413a(11) =819a(12) =1624a(13) =3206a(14) =6349a(15) =12565a(16) =24851a(17) =49183a(18) =97315a(19) =192539a(20) =380989a(21) =753836a(22) =1491567a(23) =2951330a(24) =5839638a(25) =11554621a(26) =22862658a(27) =45237262a(28) =89508951a(29) =177107406