94200

Appears in sequences

• Number of ordered set partitions with a designated element in each block and no block containing less than two elements.at n=8A052848
• Numbers n such that sigma(n) is congruent to n mod phi(n).at n=22A066679
• Triangular array read by rows. T(n,k) is the number of functional digraphs on {1,2,...,n} such that no node is at a distance greater than one from a cycle and there are k recurrent elements whose preimage contains only one element, n>=0, 0<=k<=n.at n=36A220222
• Square array T(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of e.g.f. 1/(1 - x^k/k! * (exp(x) - 1)).at n=53A355666
• Square array A(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of e.g.f. 1/(1 - x*(exp(x) - 1)^k).at n=53A392817