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.

A379479 Numbers k such that the greatest common divisor of k, sigma(k) and A003961(k) is 1 and gcd(A003961(k)-2k, A003961(k)-sigma(k)) > 1.

Table of values

n a(n)
1 7
2 13
3 19
4 28
5 31
6 37
7 43
8 46
9 55
10 61
11 67
12 68
13 69
14 79
15 91
16 97
17 103
18 106
19 109
20 127
21 131
22 139
23 146
24 151
25 163
26 166
27 175
28 181
29 193
30 199
31 200
32 223
33 229
34 241
35 251
36 261
37 271
38 277
39 283
40 301
41 307
42 313
43 323
44 325
45 331
46 337
47 344
48 346
49 349
50 371
51 379
52 391
53 397
54 409
55 421
56 428
57 439
58 444
59 449
60 457
61 463
62 466
63 475
64 481
65 487
66 491
67 494
68 496

List of values

[7, 13, 19, 28, 31, 37, 43, 46, 55, 61, 67, 68, 69, 79, 91, 97, 103, 106, 109, 127, 131, 139, 146, 151, 163, 166, 175, 181, 193, 199, 200, 223, 229, 241, 251, 261, 271, 277, 283, 301, 307, 313, 323, 325, 331, 337, 344, 346, 349, 371, 379, 391, 397, 409, 421, 428, 439, 444, 449, 457, 463, 466, 475, 481, 487, 491, 494, 496]