Expansion of (1-9*x^2-27*x^3)/((1+3*x+9*x^2)*(1-4*x-9*x^2-9*x^3+81*x^4)).

A129452

Expansion of (1-9*x^2-27*x^3)/((1+3*x+9*x^2)*(1-4*x-9*x^2-9*x^3+81*x^4)).

Terms

    a(0) =1a(1) =1a(2) =4a(3) =61a(4) =208a(5) =1093a(6) =7198a(7) =35560a(8) =193450a(9) =1089772a(10) =5837140a(11) =31840051a(12) =174564403a(13) =949080799a(14) =5176371973a(15) =28253599486a(16) =154003756249a(17) =839880083245

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