A126432 Double Wieferich primes with q = 5.

1645333507, 188748146801

Offset: 1

Author

Alexander Adamchuk, Mar 12 2007

Keywords

• bref
• hard
• more
• nonn

Comments

Double Wieferich prime pairs are pairs of primes (p, q) such that q^(p-1) == 1 (mod p^2) and p^(q-1) == 1 (mod q^2).

Links

• C. K. Caldwell, The Prime Glossary, Fermat quotient.
• Wikipedia, Wieferich pair

Crossrefs

Subsequence of A123692.

Cf. A124121, A124122, A125775.