Expansion of (1-6*x+11*x^2-5*x^3) / ((1-x)*(1-3*x)*(1-3*x+x^2)).

Terms

a(0) =1a(1) =1a(2) =2a(3) =6a(4) =20a(5) =67a(6) =221a(7) =717a(8) =2294a(9) =7258a(10) =22760a(11) =70863a(12) =219353a(13) =675769a(14) =2073674a(15) =6342414a(16) =19345052a(17) =58867195a(18) =178779893a(19) =542042565a(20) =1641058046a(21) =4962262306a(22) =14989121072a(23) =45235277511a(24) =136407241265a(25) =411058035697