188748146801domain: NAppears in sequencesPrimes p such that p^2 divides 5^(p-1) - 1.at n=6A123692Double Wieferich primes with q = 5.at n=1A126432Primes p that satisfy q^(p-1) == 1 (mod p^2), i.e., are base-q Wieferich primes, for a prime q dividing p-1.at n=7A355545