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.

A291682 Numbers k such that phi(psi(phi(k))) = psi(phi(psi(k))).

Table of values

n a(n)
1 1
2 11
3 19
4 23
5 25
6 31
7 41
8 47
9 59
10 67
11 71
12 77
13 79
14 89
15 95
16 101
17 109
18 121
19 127
20 131
21 137
22 139
23 143
24 149
25 155
26 161
27 175
28 181
29 191
30 199
31 287
32 299
33 311
34 319
35 323
36 325
37 329
38 335
39 341
40 379
41 383
42 395
43 407
44 409
45 413
46 419
47 439
48 461
49 463
50 475
51 479
52 491
53 497
54 527
55 529
56 533
57 539
58 545
59 569
60 599
61 611
62 623
63 635

List of values

[1, 11, 19, 23, 25, 31, 41, 47, 59, 67, 71, 77, 79, 89, 95, 101, 109, 121, 127, 131, 137, 139, 143, 149, 155, 161, 175, 181, 191, 199, 287, 299, 311, 319, 323, 325, 329, 335, 341, 379, 383, 395, 407, 409, 413, 419, 439, 461, 463, 475, 479, 491, 497, 527, 529, 533, 539, 545, 569, 599, 611, 623, 635]

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

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