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.

A065146 Numbers n such that the arithmetic, geometric and harmonic means of phi(n) and sigma(n) are all integers.

Table of values

n a(n)
1 1
2 248
3 264
4 418
5 477
6 1485
7 3080
8 3135
9 3596
10 3828
11 5396
12 10098
13 12648
14 20026
15 21318
16 22152
17 23374
18 24882
19 35074
20 35343
21 39105
22 41656
23 44660
24 49938
25 55154
26 56536
27 61344
28 71145
29 74613
30 86304
31 87087
32 104931
33 118296
34 124605
35 129504
36 130356
37 147560
38 150195

List of values

[1, 248, 264, 418, 477, 1485, 3080, 3135, 3596, 3828, 5396, 10098, 12648, 20026, 21318, 22152, 23374, 24882, 35074, 35343, 39105, 41656, 44660, 49938, 55154, 56536, 61344, 71145, 74613, 86304, 87087, 104931, 118296, 124605, 129504, 130356, 147560, 150195]

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

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