51372domain: NAppears in sequencesNumber of mobiles (circular rooted trees) with n nodes and 3 leaves.at n=37A055341Numbers n such that prime(n) - n is a prime power.at n=22A109315a(n) = A000215(n) mod A000045(n).at n=24A262348Total number of parts coprime to n in the partitions of n into 9 parts.at n=42A363327