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A123692 Primes p such that p^2 divides 5^(p-1) - 1. +0
8
2, 20771, 40487, 53471161, 1645333507, 6692367337, 188748146801 (list; graph; listen)
OFFSET

1,1

LINKS

C. K. Caldwell, The Prime Glossary, Fermat quotient.

CROSSREFS

Cf. A001220, A014127, A123693.

Cf. A096082, A090968.

Adjacent sequences: A123689 A123690 A123691 this_sequence A123693 A123694 A123695

Sequence in context: A159730 A158344 A124364 this_sequence A132942 A131558 A133857

KEYWORD

hard,nonn

AUTHOR

Max Alekseyev (maxale(AT)gmail.com), Oct 07 2006

EXTENSIONS

More terms from Alexander Adamchuk, Nov 27 2006

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Last modified November 8 07:45 EST 2009. Contains 166143 sequences.


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