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A343833 Prime numbers of the form floor((j/7)*10^k) where 1 <= j <= 6 and k >= 1. 1
2, 5, 7, 71, 571, 857, 2857, 28571, 1428571, 71428571, 7142857142857, 571428571428571, 1428571428571428571428571, 28571428571428571428571428571, 7142857142857142857142857142857, 2857142857142857142857142857142857, 42857142857142857142857142857142857142857 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
Sequence in context: A041125 A293592 A042257 * A103056 A041445 A265815
KEYWORD
nonn,base
AUTHOR
Konstantin Kutsenko, May 01 2021
STATUS
approved

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Last modified May 21 12:49 EDT 2024. Contains 372736 sequences. (Running on oeis4.)