156764160000
domain: N
Appears in sequences
- Dwork-Kontsevich sequence evaluated at 2*n.at n=9A007757
- a(n) = gcd(n!, n!*(1 + 1/2 + 1/3 + ... + 1/n)).at n=19A056612
- Product of nonzero digits of A066551(n).at n=21A066583
- For n >= 1, put A_n(z) = Sum_{j>=0} (n*j)!/(j!^n) * z^j and B_n(z) = Sum_{j>=0} (n*j)!/(j!^n) * z^j * (Sum__{k=j+1..j*n} (1/k)), and let u(n) be the largest integer for which exp(B_n(z)/(u(n)*A_n(z))) has integral coefficients. The sequence is u(n).at n=19A131658
- a(n) = denominator(n!/floor(n/2)!^4).at n=21A193477