141157domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that p*(p-2) divides 2^(p-1)-1.at n=22A081762Primes p such that p*(p-2) divides 3^(p-1)-1.at n=15A081764Primes of the form 7n^2 + 9.at n=20A201609Numbers n such that (n-1)^2-1 divides 2^(n-1)-1.at n=23A260406Prime numbersat n=13108