Expansion of -2*x*(-8-12*x+9*x^2) / ( (x-1)*(3*x-1)*(3*x+1)*(1+x) ).

Terms

a(0) =0a(1) =16a(2) =24a(3) =142a(4) =240a(5) =1276a(6) =2184a(7) =11482a(8) =19680a(9) =103336a(10) =177144a(11) =930022a(12) =1594320a(13) =8370196a(14) =14348904a(15) =75331762a(16) =129140160a(17) =677985856a(18) =1162261464a(19) =6101872702a(20) =10460353200a(21) =54916854316a(22) =94143178824a(23) =494251688842a(24) =847288609440