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A128667 Primes p such that p^2 divides 13^(p-1) - 1. +0
3
2, 863, 1747591 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Cf. A001220, A014127, A123692, A123693, A128668, A090968, A128669. Cf. A039951, A090968.

Sequence in context: A034227 A145748 A141185 this_sequence A050247 A159705 A159723

Adjacent sequences: A128664 A128665 A128666 this_sequence A128668 A128669 A128670

KEYWORD

bref,hard,more,nonn

AUTHOR

Alexander Adamchuk (alex(AT)kolmogorov.com), Mar 26 2007

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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