160460640

Appears in sequences

• a(n) = n!*(1 + Sum_{i=1..n} 1/i).at n=11A000774
• a(n) = n! * Sum_{k|n} (Sum_{j=1..k} 1/j); the k-sum is over the positive divisors, k, of n.at n=10A067710
• Irregular triangle read by rows: T(n,k) is the number of n-permutations whose third-longest cycle has length exactly k; n >= 0, 0 <= k <= floor(n/3).at n=30A350015