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A093168 Primes of the form 30*R_n + 7, where R_n is the repunit (A002275) of length n. +0
1
7, 37, 337, 333337, 3333333333333333333333333333333333333333333337 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Cf. A056680 (corresponding n).

Sequence in context: A100309 A089677 A075996 this_sequence A097493 A082687 A117731

Adjacent sequences: A093165 A093166 A093167 this_sequence A093169 A093170 A093171

KEYWORD

nonn

AUTHOR

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

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Last modified November 21 15:14 EST 2009. Contains 167308 sequences.

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