9144576000

Appears in sequences

• Product of the sum of all the subsets of the numbers from 1 to n.at n=3A067174
• A new q-combination type general triangle sequence based on Stirling first polynomials: here q=4: m=3: t(n,k)=If[m == 0, n!, Product[Sum[(-1)^(i + k)*StirlingS1[k - 1, i]*(m + 1)^i, {i, 0, k - 1}], {k, 1, n}]]; b(n,k,m)=If[n == 0, 1, t[n, m]/(t[k, m]*t[n - k, m])].at n=38A156586
• a(0) = 1, a(n) = n*a(n-1)*A014963(n).at n=10A180170
• a(n) = n! / A055773(n).at n=15A182922
• a(n) = n! times the denominator of the n-th harmonic number H(n).at n=9A316297
• a(n) = lcm({n! * binomial(n, k) for k = 0..n}).at n=10A360283