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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.

A235989 sigma(n) is an additive inverse of n modulo phi(n).

Table of values

n a(n)
1 1
2 2
3 6
4 10
5 12
6 28
7 76
8 120
9 312
10 588
11 672
12 888
13 1060
14 1264
15 1656
16 14496
17 17900
18 22896
19 44676
20 71712
21 77688
22 95040
23 183600
24 233088
25 327424
26 411264
27 425376
28 446016
29 453258
30 655776
31 1041120
32 1253304
33 2708640
34 5241856
35 5468352
36 8676576
37 9738912
38 12536640
39 59489184

List of values

[1, 2, 6, 10, 12, 28, 76, 120, 312, 588, 672, 888, 1060, 1264, 1656, 14496, 17900, 22896, 44676, 71712, 77688, 95040, 183600, 233088, 327424, 411264, 425376, 446016, 453258, 655776, 1041120, 1253304, 2708640, 5241856, 5468352, 8676576, 9738912, 12536640, 59489184]

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

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