1527528

Appears in sequences

• Number of ways to partition an n-set into subsets of equal size.at n=14A038041
• a(n) = n!*Sum_{d|n} (-1)^(d+1)/(d!*(n/d)!^d).at n=14A132962
• Triangular array read by rows: T(n,k) is the number of set partitions of {1,2,...,n} that have exactly k distinct block sizes.at n=40A208437
• Irregular triangle read by rows where T(n,k) is the number of uniform multiset partitions of a multiset with d = A027750(n,k) copies of each integer from 1 to n/d.at n=41A322788