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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.

A069569 a(n) = smallest prime that can be written in base 10 using just n n's.

Table of values

n a(n)
0 2
1 13
2 223
3 2333
4 44449
5 555557
6 16666669
7 77767777
8 888888883
9 9199999999
10 1010101010010101010107
11 11111111111111111111111
12 12112121212121212121212127
13 131131313131313131313131313
14 141414014141414141414141414149
15 15151151515151515151515151515159

List of values

[2, 13, 223, 2333, 44449, 555557, 16666669, 77767777, 888888883, 9199999999, 1010101010010101010107, 11111111111111111111111, 12112121212121212121212127, 131131313131313131313131313, 141414014141414141414141414149, 15151151515151515151515151515159]

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

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