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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.

A278338 Irregular triangle read by rows in which row n contains the first Carmichael number equal to m mod n where m is coprime to n, 0 <= m < n, ordered by m.

Table of values

n a(n)
1 561
2 561
3 1105
4 2465
5 561
6 8911
7 561
8 46657
9 52633
10 1729
11 1105
12 2465
13 561
14 46657
15 294409
16 29341
17 512461
18 1105
19 561
20 1024651
21 2821
22 8911
23 1729
24 1909001
25 2821
26 162401
27 1105
28 2465
29 561
30 52633
31 46657
32 1729
33 2465
34 1729
35 10585
36 29341
37 1105
38 46657
39 1193221

List of values

[561, 561, 1105, 2465, 561, 8911, 561, 46657, 52633, 1729, 1105, 2465, 561, 46657, 294409, 29341, 512461, 1105, 561, 1024651, 2821, 8911, 1729, 1909001, 2821, 162401, 1105, 2465, 561, 52633, 46657, 1729, 2465, 1729, 10585, 29341, 1105, 46657, 1193221]

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

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