18681062400
domain: N
Appears in sequences
- a(n) = 3*n!.at n=13A052560
- Expansion of e.g.f. 3*x^3/(1-x).at n=13A052619
- E.g.f. 3x(1+x-x^2)/(1-x).at n=13A052637
- Denominators of coefficients in 1/sin(x) - 1/sinh(x) power series.at n=3A068918
- E.g.f.: Product_{m>0} (1 + x^(2*m-1)).at n=13A293487
- Number of ways to fill a 3D matrix with n distinct values.at n=13A306656
- Expansion of e.g.f. log(1 + x / (1 - x)^2).at n=14A328054