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.

A384840 Numbers k for which sigma(k - x) + sigma(k + x) = 7*k has at least one nonnegative solution.

Table of values

n a(n)
1 1952
2 1992
3 2016
4 2160
5 2520
6 2640
7 3314
8 3744
9 3801
10 4320
11 4484
12 4500
13 4566
14 4620
15 4680
16 4994
17 5016
18 5948
19 6072
20 6096
21 6194
22 6384
23 6492
24 6552
25 6654
26 6870
27 7056
28 7200
29 7224
30 7382
31 7435
32 7440
33 7470
34 7794
35 7812
36 7920
37 7956
38 8376
39 8480
40 8604
41 8616
42 8702
43 8892
44 9284
45 9360
46 9408

List of values

[1952, 1992, 2016, 2160, 2520, 2640, 3314, 3744, 3801, 4320, 4484, 4500, 4566, 4620, 4680, 4994, 5016, 5948, 6072, 6096, 6194, 6384, 6492, 6552, 6654, 6870, 7056, 7200, 7224, 7382, 7435, 7440, 7470, 7794, 7812, 7920, 7956, 8376, 8480, 8604, 8616, 8702, 8892, 9284, 9360, 9408]