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.

A335902 Composite numbers c such that phi(c)/phi(mind(c)) mod phi(c)/phi(maxd(c)) <> 0, where phi is the Euler function, mind(c) is the smallest nontrivial divisor of c, maxd(c) is the largest nontrivial divisor of c.

Table of values

n a(n)
1 35
2 55
3 77
4 95
5 115
6 119
7 143
8 155
9 161
10 187
11 203
12 209
13 215
14 221
15 235
16 245
17 247
18 253
19 287
20 295
21 299
22 319
23 323
24 329
25 335
26 355
27 371
28 377
29 391
30 395
31 403
32 407
33 413
34 415
35 437
36 473
37 493
38 497
39 515
40 517
41 527
42 533
43 535
44 551
45 559
46 581
47 583
48 589
49 605
50 611
51 623
52 629
53 635
54 649

List of values

[35, 55, 77, 95, 115, 119, 143, 155, 161, 187, 203, 209, 215, 221, 235, 245, 247, 253, 287, 295, 299, 319, 323, 329, 335, 355, 371, 377, 391, 395, 403, 407, 413, 415, 437, 473, 493, 497, 515, 517, 527, 533, 535, 551, 559, 581, 583, 589, 605, 611, 623, 629, 635, 649]

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

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