17915904000
domain: N
Appears in sequences
- Numbers n such that n = phi(d_1)!*phi(d_2)!* ... *phi(d_k)! where d_1 d_2 ... d_k is the decimal expansion of n and assume that phi(0)=0.at n=4A102279
- Reduced denominators of the central moments of the distribution of areas for triangles picked at random in a unit square.at n=3A103282
- a(n) = (n-1)! * Product_{k=1..n-2} (n-k)!.at n=6A152653
- 2-Hankel transform of ((2*n - 1)!!, 2^n * n).at n=6A292797