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

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =4a(6) =6a(7) =7a(8) =8a(9) =12a(10) =21a(11) =33a(12) =44a(13) =55a(14) =76a(15) =119a(16) =185a(17) =263a(18) =351a(19) =480a(20) =706a(21) =1066a(22) =1551a(23) =2156a(24) =2982a(25) =4269a(26) =6281a(27) =9162a(28) =13013a(29) =18252