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

Terms

a(0) =1a(1) =2a(2) =5a(3) =14a(4) =38a(5) =103a(6) =280a(7) =761a(8) =2068a(9) =5620a(10) =15273a(11) =41506a(12) =112797a(13) =306538a(14) =833050a(15) =2263903a(16) =6152400a(17) =16719809a(18) =45437880a(19) =123482328a(20) =335576513a(21) =911965282a(22) =2478363781a(23) =6735220246a(24) =18303685726a(25) =49742235431a(26) =135179877032