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

Terms

a(0) =1a(1) =2a(2) =8a(3) =26a(4) =90a(5) =306a(6) =1046a(7) =3570a(8) =12190a(9) =41618a(10) =142094a(11) =485138a(12) =1656366a(13) =5655186a(14) =19308014a(15) =65921682a(16) =225070702a(17) =768439442a(18) =2623616366a(19) =8957586578a(20) =30583113582a(21) =104417281170a(22) =356502897518