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

Terms

a(0) =1a(1) =0a(2) =3a(3) =-2a(4) =9a(5) =-12a(6) =31a(7) =-54a(8) =117a(9) =-224a(10) =459a(11) =-906a(12) =1825a(13) =-3636a(14) =7287a(15) =-14558a(16) =29133a(17) =-58248a(18) =116515a(19) =-233010a(20) =466041a(21) =-932060a(22) =1864143a(23) =-3728262a(24) =7456549a(25) =-14913072a(26) =29826171a(27) =-59652314a(28) =119304657a(29) =-238609284