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

Terms

a(0) =0a(1) =1a(2) =2a(3) =1a(4) =2a(5) =3a(6) =2a(7) =7a(8) =10a(9) =13a(10) =26a(11) =33a(12) =50a(13) =83a(14) =114a(15) =183a(16) =282a(17) =413a(18) =650a(19) =977a(20) =1474a(21) =2275a(22) =3426a(23) =5223a(24) =7978a(25) =12077a(26) =18426a(27) =28033a(28) =42578a(29) =64883