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

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =7a(5) =14a(6) =27a(7) =55a(8) =110a(9) =219a(10) =439a(11) =878a(12) =1755a(13) =3511a(14) =7022a(15) =14043a(16) =28087a(17) =56174a(18) =112347a(19) =224695a(20) =449390a(21) =898779a(22) =1797559a(23) =3595118a(24) =7190235a(25) =14380471a(26) =28760942a(27) =57521883a(28) =115043767a(29) =230087534