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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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

Table of values

n a(n)
1 2
2 5
3 7
4 71
5 571
6 857
7 2857
8 28571
9 1428571
10 71428571
11 7142857142857
12 571428571428571
13 1428571428571428571428571
14 28571428571428571428571428571
15 7142857142857142857142857142857
16 2857142857142857142857142857142857
17 42857142857142857142857142857142857142857

List of values

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

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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