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A093400 Primes of the form 10*R_n + 9, where R_n is the repunit (A002275) of length n. +0
1
19, 11119, 111119, 11111119, 11111111111111119, 11111111111111111111111111111111111111111111111119 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Cf. A056659 (corresponding n).

Sequence in context: A067267 A124989 A156973 this_sequence A110392 A107100 A125043

Adjacent sequences: A093397 A093398 A093399 this_sequence A093401 A093402 A093403

KEYWORD

nonn

AUTHOR

Rick L. Shepherd (rshepherd2(AT)hotmail.com), Mar 28 2004

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

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