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.

A217301 Numbers n such that gcd(n, phi(n)) = gcd(phi(n), sigma(n)) = gcd(sigma(n), n) = tau(n).

Table of values

n a(n)
1 1
2 184
3 376
4 1336
5 1912
6 2104
7 2872
8 3064
9 3832
10 4024
11 4792
12 5176
13 5752
14 5944
15 6712
16 6904
17 7096
18 7864
19 8824
20 9784
21 10552
22 10936
23 11512
24 11896
25 12472
26 12664
27 12856
28 14584
29 14776
30 16312
31 16504
32 16696
33 17656
34 19192
35 19384
36 19576
37 20344
38 21304
39 21496
40 22644

List of values

[1, 184, 376, 1336, 1912, 2104, 2872, 3064, 3832, 4024, 4792, 5176, 5752, 5944, 6712, 6904, 7096, 7864, 8824, 9784, 10552, 10936, 11512, 11896, 12472, 12664, 12856, 14584, 14776, 16312, 16504, 16696, 17656, 19192, 19384, 19576, 20344, 21304, 21496, 22644]