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Search: id:A093171
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A093171 Primes of the form 80*R_n + 7, where R_n is the repunit (A002275) of length n. +0
1
7, 887, 8887, 888887, 888888887, 888888888887, 888888888888888888888888888888888888888888888888888888888888888888888887 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Cf. A056695 (corresponding n).

Sequence in context: A001467 A047788 A087350 this_sequence A127102 A038808 A068728

Adjacent sequences: A093168 A093169 A093170 this_sequence A093172 A093173 A093174

KEYWORD

nonn

AUTHOR

Rick L. Shepherd (rshepherd2(AT)hotmail.com), Mar 26 2004

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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