Expansion of e.g.f. (1-x)^2/(1-4*x+3*x^2-x^3).
A052696
Expansion of e.g.f. (1-x)^2/(1-4*x+3*x^2-x^3).
Terms
- a(0) =1a(1) =2a(2) =12a(3) =114a(4) =1440a(5) =22680a(6) =428400a(7) =9439920a(8) =237726720a(9) =6735052800a(10) =212012640000
External references
- oeis: A052696