Expansion of g.f. x*(21 + 123*x + 129*x^2 + 4*x^3 + 129*x^4 + 123*x^5 + 21*x^6)/((1 - x)^3*(1 + x + x^2 + x^3)^2).

A377166

Expansion of g.f. x*(21 + 123*x + 129*x^2 + 4*x^3 + 129*x^4 + 123*x^5 + 21*x^6)/((1 - x)^3*(1 + x + x^2 + x^3)^2).

Terms

    a(0) =0a(1) =21a(2) =144a(3) =273a(4) =277a(5) =448a(6) =817a(7) =1096a(8) =1104a(9) =1425a(10) =2040a(11) =2469a(12) =2481a(13) =2952a(14) =3813a(15) =4392a(16) =4408a(17) =5029a(18) =6136a(19) =6865a(20) =6885a(21) =7656a(22) =9009a(23) =9888a(24) =9912a(25) =10833a(26) =12432a(27) =13461a(28) =13489a(29) =14560

External references