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.

A247787 Sum of divisors of 2*prime(n)-1.

Table of values

n a(n)
1 4
2 6
3 13
4 14
5 32
6 31
7 48
8 38
9 78
10 80
11 62
12 74
13 121
14 108
15 128
16 192
17 182
18 133
19 160
20 192
21 180
22 158
23 288
24 240
25 194
26 272
27 252
28 288
29 256
30 403
31 288
32 390
33 448
34 278
35 480
36 352
37 314
38 434
39 494
40 576
41 576
42 381
43 512
44 576
45 528
46 398
47 422
48 540
49 608
50 458
51 768
52 702
53 532
54 672

List of values

[4, 6, 13, 14, 32, 31, 48, 38, 78, 80, 62, 74, 121, 108, 128, 192, 182, 133, 160, 192, 180, 158, 288, 240, 194, 272, 252, 288, 256, 403, 288, 390, 448, 278, 480, 352, 314, 434, 494, 576, 576, 381, 512, 576, 528, 398, 422, 540, 608, 458, 768, 702, 532, 672]