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Every prime repunit is also a cyclic prime.
Table of n, a(n) for n=1..23.
P. De Geest, Circular Primes
Cf. A004022, A004023, A068652.
Sequence in context: A085724 A106854 A099458 * A010413 A112652 A272933
Adjacent sequences: A069216 A069217 A069218 * A069220 A069221 A069222
Martin Renner, Apr 12 2002
More terms from De Geest link by Ray Chandler, May 04 2017