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.

A085842 Numbers k whose divisors (apart from 1 and k) sum to a prime.

Table of values

n a(n)
1 4
2 6
3 9
4 10
5 22
6 25
7 30
8 34
9 42
10 49
11 58
12 60
13 70
14 78
15 82
16 84
17 102
18 118
19 120
20 121
21 138
22 142
23 168
24 169
25 186
26 198
27 202
28 214
29 216
30 220
31 222
32 228
33 234
34 238
35 240
36 246
37 258
38 270
39 274
40 280
41 282
42 289
43 294
44 298
45 348
46 358
47 360
48 361
49 364
50 370
51 372
52 382
53 390
54 394
55 406
56 414
57 438
58 442
59 444

List of values

[4, 6, 9, 10, 22, 25, 30, 34, 42, 49, 58, 60, 70, 78, 82, 84, 102, 118, 120, 121, 138, 142, 168, 169, 186, 198, 202, 214, 216, 220, 222, 228, 234, 238, 240, 246, 258, 270, 274, 280, 282, 289, 294, 298, 348, 358, 360, 361, 364, 370, 372, 382, 390, 394, 406, 414, 438, 442, 444]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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