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A069219 Number of cyclic primes with n digits. +0
1
4, 9, 12, 8, 10, 12, 0, 0, 0, 0, 0, 0 (list; graph; listen)
OFFSET

1,1

COMMENT

Every prime repunit is also a cyclic prime.

CROSSREFS

Cf. A068652.

Cf. A004022, A004023.

Sequence in context: A085724 A106854 A099458 this_sequence A010413 A112652 A140399

Adjacent sequences: A069216 A069217 A069218 this_sequence A069220 A069221 A069222

KEYWORD

nonn,base

AUTHOR

Martin Renner (martin.renner(AT)gmx.net), Apr 12 2002

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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