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

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =11a(5) =26a(6) =61a(7) =143a(8) =336a(9) =789a(10) =1853a(11) =4352a(12) =10221a(13) =24005a(14) =56378a(15) =132409a(16) =310975a(17) =730354a(18) =1715305a(19) =4028555a(20) =9461440a(21) =22221081a(22) =52188297a(23) =122569120a(24) =287865097a(25) =676078233a(26) =1587833266a(27) =3729175645a(28) =8758319459a(29) =20569736330