Expansion of e.g.f. (1-x)/(1-4*x+x^2).
A052677
Expansion of e.g.f. (1-x)/(1-4*x+x^2).
Terms
- a(0) =1a(1) =3a(2) =22a(3) =246a(4) =3672a(5) =68520a(6) =1534320a(7) =40083120a(8) =1196737920a(9) =40196580480
External references
- oeis: A052677
A052677
Expansion of e.g.f. (1-x)/(1-4*x+x^2).