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.

A348918 Noninfinitary harmonic numbers: numbers such that the harmonic mean of their noninfinitary divisors is an integer.

Table of values

n a(n)
1 4
2 9
3 12
4 18
5 25
6 45
7 49
8 60
9 96
10 112
11 121
12 126
13 150
14 169
15 289
16 294
17 336
18 361
19 448
20 486
21 529
22 540
23 560
24 600
25 637
26 672
27 726
28 841
29 961
30 1014
31 1232
32 1344
33 1350
34 1369
35 1638
36 1680
37 1681
38 1734
39 1849
40 2166
41 2209
42 2430
43 2809
44 2850
45 3174
46 3481
47 3721
48 3822
49 4200
50 4320
51 4489

List of values

[4, 9, 12, 18, 25, 45, 49, 60, 96, 112, 121, 126, 150, 169, 289, 294, 336, 361, 448, 486, 529, 540, 560, 600, 637, 672, 726, 841, 961, 1014, 1232, 1344, 1350, 1369, 1638, 1680, 1681, 1734, 1849, 2166, 2209, 2430, 2809, 2850, 3174, 3481, 3721, 3822, 4200, 4320, 4489]

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

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