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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.

A069837 Smallest prime which is a concatenation of n primes.

Table of values

n a(n)
1 2
2 23
3 223
4 2237
5 22273
6 222323
7 2222273
8 22222223
9 222222227
10 2222222377
11 22222222223
12 222222223273
13 2222222222273
14 22222222222327
15 222222222222227
16 2222222222222533
17 22222222222223557
18 222222222222222577
19 2222222222222222327
20 22222222222222222253
21 222222222222222222277
22 2222222222222222222273
23 22222222222222222222327

List of values

[2, 23, 223, 2237, 22273, 222323, 2222273, 22222223, 222222227, 2222222377, 22222222223, 222222223273, 2222222222273, 22222222222327, 222222222222227, 2222222222222533, 22222222222223557, 222222222222222577, 2222222222222222327, 22222222222222222253, 222222222222222222277, 2222222222222222222273, 22222222222222222222327]

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

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