1437004800
domain: N
Appears in sequences
- a(n) = 3*n!.at n=12A052560
- Expansion of e.g.f. (3+2*x)/(1-x^2).at n=12A052616
- Expansion of e.g.f. 3*x^3/(1-x).at n=12A052619
- E.g.f. 3x(1+x-x^2)/(1-x).at n=12A052637
- Number of adjacent pairs of form (even,odd) among all permutations of {1,2,...,n}. Also, number of adjacent pairs of form (odd,even).at n=11A077613
- Let x^3/(-1-x+x^3)=Sum[b[n]*x^n/n1,{n,0,Infinity}]; a(n) = Abs[b[n]].at n=12A109583
- Number of even entries that are followed by a smaller entry in all permutations of {1,2,...,n}.at n=11A145889
- The denominators of J. L. Fields generalized Bernoulli polynomials.at n=10A220411
- Compositorial(n) mod n!, that is, A036691(n) mod A000142(n).at n=12A233448
- Denominators of coefficients in expansion of 3/(2 + cos(sqrt(x))).at n=6A279234
- E.g.f.: Product_{m>0} 1/(1 + x^m).at n=12A293300
- E.g.f.: Product_{m>0} (1 + x^(2*m-1)).at n=12A293487
- Terms k of A025487 such that A000005(k) = A000688(k).at n=8A369169