Expansion of e.g.f. (1-x)/(1-x-2*x^2+x^3).

A052672

Expansion of e.g.f. (1-x)/(1-x-2*x^2+x^3).

Terms

    a(0) =1a(1) =0a(2) =4a(3) =6a(4) =120a(5) =600a(6) =10080a(7) =95760a(8) =1693440a(9) =23950080a(10) =475372800a(11) =8821612800a(12) =199743667200

External references