Expansion of (1-2*x)*(1-x)/(1-5*x+6*x^2-x^3).

Terms

a(0) =1a(1) =2a(2) =6a(3) =19a(4) =61a(5) =197a(6) =638a(7) =2069a(8) =6714a(9) =21794a(10) =70755a(11) =229725a(12) =745889a(13) =2421850a(14) =7863641a(15) =25532994a(16) =82904974a(17) =269190547a(18) =874055885a(19) =2838041117a(20) =9215060822a(21) =29921113293a(22) =97153242650a(23) =315454594314