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A173818
3*n-1 is a circular prime.
1
1, 2, 4, 6, 38, 66, 398, 1260, 3980
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..9.
CROSSREFS
Cf. A016114.
Sequence in context: A195324 A175877 A269265 * A263541 A283157 A344422
Adjacent sequences: A173815 A173816 A173817 * A173819 A173820 A173821
KEYWORD
nonn,less
AUTHOR
Juri-Stepan Gerasimov, Feb 25 2010
STATUS
approved

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Last modified February 19 20:39 EST 2025. Contains 381029 sequences.
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