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Search: id:A093944
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A093944 Primes of the form 9*10^n + 7*R_n, where R_n is the repunit (A002275) of length n. +0
2
97, 977, 97777, 97777777777777777777, 97777777777777777777777777777, 97777777777777777777777777777777777777777777777777777777777777777777777777 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Cf. A056727 (corresponding n).

Sequence in context: A070845 A093297 A068852 this_sequence A127748 A127828 A087596

Adjacent sequences: A093941 A093942 A093943 this_sequence A093945 A093946 A093947

KEYWORD

nonn

AUTHOR

Rick L. Shepherd (rshepherd2(AT)hotmail.com), Apr 17 2004

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Last modified November 21 21:21 EST 2009. Contains 167310 sequences.

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