1645333507

Appears in sequences

• Primes p such that p^2 divides 5^(p-1) - 1.at n=4A123692
• Least prime p such that (p,q) is a Double Wieferich prime pair for q=A124121(n).at n=2A124122
• Double Wieferich primes with q = 5.at n=0A126432
• Primes p such that a prime q < p exists with p^(q-1) == 1 (mod q^2) and q^(p-1) == 1 (mod p^2), i.e., primes that are the larger member of a double Wieferich prime pair.at n=5A266829
• Primes p such that A001221(p+1)^(p-1) == 1 (mod p^2).at n=10A267487
• Two-column array A(n, k) read by rows, where A(n, 1) and A(n, 2) respectively give values of q and p in the n-th double Wieferich prime pair, where p > q. Terms sorted first by increasing size of p, then by increasing size of q.at n=11A282293