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

Terms

a(0) =1a(1) =0a(2) =3a(3) =2a(4) =11a(5) =14a(6) =45a(7) =76a(8) =197a(9) =380a(10) =895a(11) =1838a(12) =4143a(13) =8762a(14) =19353a(15) =41496a(16) =90793a(17) =195928a(18) =426811a(19) =923802a(20) =2008307a(21) =4352902a(22) =9454021a(23) =20504420a(24) =44513581a(25) =96572820a(26) =209609143a(27) =454814022a(28) =987068631a(29) =2141901554