288768

Appears in sequences

• Composite numbers such that product_{i=1..k} (p_i/(p_i-1)) / sum_{i=1..k} (p_i/(p_i-1)) is an integer, where p_i are the k prime factors of n (with multiplicity).at n=23A227034
• Triangle read by rows: T(n,k) is the number of proper vertex colorings of the n-complete tripartite graph using exactly k interchangeable colors, 3 <= k <= 3*n.at n=45A385432