

A126432


Double Wieferich primes with q = 5.


5




OFFSET

1,1


COMMENTS

Double Wieferich prime pairs are pairs of primes (p, q) such that q^(p1) == 1 (mod p^2) and p^(q1) == 1 (mod q^2).


LINKS

Table of n, a(n) for n=1..2.
C. K. Caldwell, The Prime Glossary, Fermat quotient.
Wikipedia, Wieferich pair


CROSSREFS

Subsequence of A123692.
Cf. A124121, A124122, A125775.
Sequence in context: A227444 A329463 A246250 * A186175 A202573 A071372
Adjacent sequences: A126429 A126430 A126431 * A126433 A126434 A126435


KEYWORD

bref,hard,more,nonn


AUTHOR

Alexander Adamchuk, Mar 12 2007


STATUS

approved



