305382

Appears in sequences

• Number of minimal 3-covers of a labeled n-set.at n=5A003468
• Duplicate of A003468.at n=5A028109
• Triangle of a(n,k) = number of k-member minimal covers of an n-set (n >= k >= 1).at n=30A035348
• 4-Stirling numbers of the second kind.at n=39A143496