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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.

A336458 Numbers k for which A065330(k) = A065330(sigma(k)).

Table of values

n a(n)
1 1
2 2
3 3
4 6
5 28
6 40
7 84
8 120
9 135
10 224
11 270
12 496
13 672
14 819
15 1488
16 1638
17 3780
18 8128
19 10880
20 24384
21 30240
22 32640
23 32760
24 66960
25 167400
26 174592
27 406224
28 523776
29 1097280
30 2178540
31 3138345
32 6276690
33 6517665
34 6656832
35 8910720
36 10480640
37 13035330
38 14705145
39 17428320
40 23569920
41 29410290
42 31441920
43 33550336

List of values

[1, 2, 3, 6, 28, 40, 84, 120, 135, 224, 270, 496, 672, 819, 1488, 1638, 3780, 8128, 10880, 24384, 30240, 32640, 32760, 66960, 167400, 174592, 406224, 523776, 1097280, 2178540, 3138345, 6276690, 6517665, 6656832, 8910720, 10480640, 13035330, 14705145, 17428320, 23569920, 29410290, 31441920, 33550336]

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

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