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

Terms

a(0) =1a(1) =1a(2) =2a(3) =1a(4) =1a(5) =-2a(6) =-3a(7) =-7a(8) =-6a(9) =-7a(10) =1a(11) =6a(12) =21a(13) =25a(14) =34a(15) =17a(16) =1a(17) =-50a(18) =-83a(19) =-135a(20) =-118a(21) =-87a(22) =65a(23) =214a(24) =453a(25) =537a(26) =562a(27) =193a(28) =-319a(29) =-1250