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.

A128168 Numbers k such that k divides 1 + Sum_{j=1..k} prime(j)^4 = 1 + A122102(k).

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 6
7 8
8 9
9 10
10 12
11 15
12 16
13 20
14 24
15 27
16 30
17 32
18 39
19 40
20 45
21 48
22 58
23 60
24 80
25 88
26 90
27 96
28 100
29 120
30 138
31 168
32 180
33 207
34 216
35 240
36 328
37 342
38 353
39 360
40 456
41 470
42 480
43 496
44 564
45 591
46 768
47 840
48 1040
49 1215
50 1276
51 1355
52 1360
53 1395
54 1440
55 1600
56 2208
57 2576
58 2904

List of values

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 20, 24, 27, 30, 32, 39, 40, 45, 48, 58, 60, 80, 88, 90, 96, 100, 120, 138, 168, 180, 207, 216, 240, 328, 342, 353, 360, 456, 470, 480, 496, 564, 591, 768, 840, 1040, 1215, 1276, 1355, 1360, 1395, 1440, 1600, 2208, 2576, 2904]