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

Terms

a(0) =1a(1) =3a(2) =9a(3) =23a(4) =59a(5) =147a(6) =367a(7) =911a(8) =2263a(9) =5615a(10) =13935a(11) =34575a(12) =85791a(13) =212863a(14) =528159a(15) =1310463a(16) =3251519a(17) =8067647a(18) =20017407a(19) =49667071a(20) =123233663a(21) =305766655a(22) =758666495a(23) =1882398975a(24) =4670597631a(25) =11588660223a(26) =28753717759a(27) =71343560703a(28) =177017236479a(29) =439214158847