10222080

Appears in sequences

• Numbers k such that k = phi(sigma(phi(sigma(k)))).at n=34A067883
• Number of 4-cycles in the n-halved cube graph.at n=11A290027
• Iterate the function x <- phi(sigma(x)). The sequence lists the smaller member of cycles of length 2.at n=9A373435
• Numbers which are the minimum of a cycle in the map x -> phi(sigma(x)).at n=35A376256