262209281domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form sigma(m^2) where m is a composite number ordered by values m.at n=21A065403Primes of the form p^4 + p^3 + p^2 + p + 1, where p is prime.at n=10A190527Primes in A258978.at n=16A258980Prime numbersat n=14310114