689762304000
domain: N
Appears in sequences
- Denominators of logarithmic numbers (also of Gregory coefficients G(n)).at n=15A002207
- Number of permutations on 1..n where gcd(s_i,n) = gcd(i,n). Also Product_{d divides n} phi(d)!.at n=20A120065
- a(n) = Product_{k=0..n} (k^2-k)!.at n=4A272168
- The number of positive integer sequences of length n with no duplicate substrings of length greater than 1 and a minimal product (= A282164(n)).at n=30A283557
- a(n) is the least number k such that A349258(k) = n.at n=27A349260