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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

Table of n, a(n) for n=1..17.

K. Kutsenko, Cyclic prime numbers

CROSSREFS

Cf. A001913, A101202.

Sequence in context: A041125 A293592 A042257 * A103056 A041445 A265815

Adjacent sequences:  A343830 A343831 A343832 * A343834 A343835 A343836

KEYWORD

nonn,base

AUTHOR

Konstantin Kutsenko, May 01 2021

STATUS

approved

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Last modified September 23 14:40 EDT 2021. Contains 347618 sequences. (Running on oeis4.)