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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.

A193417 Numbers n such that the number of the odd divisors of phi(n) is different from the number of the odd divisors of lambda(n).

Table of values

n a(n)
1 63
2 91
3 117
4 126
5 133
6 171
7 182
8 189
9 217
10 234
11 247
12 252
13 259
14 266
15 273
16 275
17 279
18 301
19 315
20 333
21 341
22 342
23 351
24 364
25 378
26 387
27 399
28 403
29 427
30 434
31 441
32 451
33 455
34 468
35 469
36 481
37 494
38 504
39 511
40 513
41 518
42 532
43 546
44 549
45 550
46 553
47 558
48 559
49 567
50 585
51 589
52 602

List of values

[63, 91, 117, 126, 133, 171, 182, 189, 217, 234, 247, 252, 259, 266, 273, 275, 279, 301, 315, 333, 341, 342, 351, 364, 378, 387, 399, 403, 427, 434, 441, 451, 455, 468, 469, 481, 494, 504, 511, 513, 518, 532, 546, 549, 550, 553, 558, 559, 567, 585, 589, 602]

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

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