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.

A078164 Numbers k such that phi(k) is a perfect biquadrate.

Table of values

n a(n)
1 1
2 2
3 17
4 32
5 34
6 40
7 48
8 60
9 257
10 512
11 514
12 544
13 640
14 680
15 768
16 816
17 960
18 1020
19 1297
20 1387
21 1417
22 1729
23 1971
24 2109
25 2223
26 2289
27 2331
28 2445
29 2457
30 2565
31 2594
32 2608
33 2774
34 2812
35 2834
36 2835
37 3052
38 3260
39 3458
40 3888
41 3912
42 3924
43 3942
44 3996
45 4104
46 4212
47 4218

List of values

[1, 2, 17, 32, 34, 40, 48, 60, 257, 512, 514, 544, 640, 680, 768, 816, 960, 1020, 1297, 1387, 1417, 1729, 1971, 2109, 2223, 2289, 2331, 2445, 2457, 2565, 2594, 2608, 2774, 2812, 2834, 2835, 3052, 3260, 3458, 3888, 3912, 3924, 3942, 3996, 4104, 4212, 4218]