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

2, 5, 7, 71, 571, 857, 2857, 28571, 1428571, 71428571, 7142857142857, 571428571428571, 1428571428571428571428571, 28571428571428571428571428571, 7142857142857142857142857142857, 2857142857142857142857142857142857, 42857142857142857142857142857142857142857

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: A383821 A386160 A042257 * A103056 A381903 A041445

Adjacent sequences: A343830 A343831 A343832 * A343834 A343835 A343836

Keyword

nonn,base

Author

Konstantin Kutsenko, May 01 2021

Status

approved