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

Terms

a(0) =2a(1) =5a(2) =11a(3) =20a(4) =35a(5) =59a(6) =98a(7) =161a(8) =263a(9) =428a(10) =695a(11) =1127a(12) =1826a(13) =2957a(14) =4787a(15) =7748a(16) =12539a(17) =20291a(18) =32834a(19) =53129a(20) =85967a(21) =139100a(22) =225071a(23) =364175a(24) =589250a(25) =953429a(26) =1542683a(27) =2496116a(28) =4038803a(29) =6534923