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

Terms

a(0) =1a(1) =-1a(2) =5a(3) =-12a(4) =36a(5) =-100a(6) =285a(7) =-805a(8) =2281a(9) =-6456a(10) =18280a(11) =-51752a(12) =146521a(13) =-414825a(14) =1174445a(15) =-3325060a(16) =9413836a(17) =-26652236a(18) =75457205a(19) =-213632717a(20) =604832081a(21) =-1712386800a(22) =4848070480a(23) =-13725746640a(24) =38860021041a(25) =-110019605841a(26) =311485000405a(27) =-881869233532