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A343833 Prime numbers of the form floor((j/7)*10^k) where 1 <= j <= 6 and k >= 1. 1

%I #27 May 06 2021 22:21:01

%S 2,5,7,71,571,857,2857,28571,1428571,71428571,7142857142857,

%T 571428571428571,1428571428571428571428571,

%U 28571428571428571428571428571,7142857142857142857142857142857,2857142857142857142857142857142857,42857142857142857142857142857142857142857

%N Prime numbers of the form floor((j/7)*10^k) where 1 <= j <= 6 and k >= 1.

%H K. Kutsenko, <a href="https://github.com/constcut/cyclicprime/raw/main/paper/cyclic_prime_numbers.pdf">Cyclic prime numbers</a>

%Y Cf. A001913, A101202.

%K nonn,base

%O 1,1

%A _Konstantin Kutsenko_, May 01 2021

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Last modified June 16 14:12 EDT 2024. Contains 373430 sequences. (Running on oeis4.)