cp's OEIS Frontend

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.

A370531 The smallest number in base n such that two digits (and no fewer) need to be changed to get a prime.

Table of values

n a(n)
2 8
3 24
4 24
5 90
6 90
7 119
8 200
9 117
10 200
11 319
12 528
13 1131
14 1134
15 525
16 1328
17 1343
18 1332
19 1330
20 1340
21 2478
22 7260
23 1334
24 5352
25 4300
26 5954
27 4833
28 13188
29 8468
30 10800
31 15686
32 11744
33 19338
34 19618
35 22575
36 19620
37 15688
38 28234
39 19617
40 25480
41 31406
42 19614
43 40291
44 25476
45 31410

List of values

[8, 24, 24, 90, 90, 119, 200, 117, 200, 319, 528, 1131, 1134, 525, 1328, 1343, 1332, 1330, 1340, 2478, 7260, 1334, 5352, 4300, 5954, 4833, 13188, 8468, 10800, 15686, 11744, 19338, 19618, 22575, 19620, 15688, 28234, 19617, 25480, 31406, 19614, 40291, 25476, 31410]

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

Content is available under The OEIS End-User License Agreement.