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

Terms

a(0) =1a(1) =5a(2) =14a(3) =36a(4) =83a(5) =182a(6) =382a(7) =778a(8) =1546a(9) =3013a(10) =5778a(11) =10932a(12) =20447a(13) =37867a(14) =69526a(15) =126690a(16) =229309a(17) =412570a(18) =738308a(19) =1314824a(20) =2331218a(21) =4116731a(22) =7243092a(23) =12700680a(24) =22201165a(25) =38696513a(26) =67267550a(27) =116642832a(28) =201791063a(29) =348339614