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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.

A039771 Numbers k such that phi(k) is a perfect cube.

Table of values

n a(n)
1 1
2 2
3 15
4 16
5 20
6 24
7 30
8 85
9 128
10 136
11 160
12 170
13 192
14 204
15 240
16 247
17 259
18 327
19 333
20 351
21 399
22 405
23 436
24 494
25 518
26 532
27 648
28 654
29 666
30 684
31 702
32 756
33 771
34 798
35 810
36 1024
37 1028
38 1088
39 1111
40 1255
41 1280
42 1360
43 1375
44 1536
45 1542
46 1632
47 1843
48 1853
49 1875
50 1920
51 2008

List of values

[1, 2, 15, 16, 20, 24, 30, 85, 128, 136, 160, 170, 192, 204, 240, 247, 259, 327, 333, 351, 399, 405, 436, 494, 518, 532, 648, 654, 666, 684, 702, 756, 771, 798, 810, 1024, 1028, 1088, 1111, 1255, 1280, 1360, 1375, 1536, 1542, 1632, 1843, 1853, 1875, 1920, 2008]

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

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