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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.

A007372 Numbers k such that sigma(x) = k has exactly 3 solutions.

Table of values

n a(n)
1 24
2 42
3 48
4 60
5 84
6 90
7 224
8 228
9 234
10 248
11 270
12 294
13 324
14 450
15 468
16 528
17 558
18 620
19 640
20 660
21 810
22 882
23 888
24 896
25 968
26 972
27 1020
28 1050
29 1104
30 1116
31 1140
32 1216
33 1232
34 1240
35 1274
36 1332
37 1392
38 1400
39 1452
40 1456
41 1464
42 1482
43 1524
44 1530
45 1600
46 1694
47 1716
48 1760

List of values

[24, 42, 48, 60, 84, 90, 224, 228, 234, 248, 270, 294, 324, 450, 468, 528, 558, 620, 640, 660, 810, 882, 888, 896, 968, 972, 1020, 1050, 1104, 1116, 1140, 1216, 1232, 1240, 1274, 1332, 1392, 1400, 1452, 1456, 1464, 1482, 1524, 1530, 1600, 1694, 1716, 1760]

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

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