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.

A245202 Numbers k such that tau(k) + phi(k) is a perfect square.

Table of values

n a(n)
1 3
2 9
3 21
4 24
5 26
6 30
7 51
8 72
9 77
10 84
11 90
12 93
13 100
14 119
15 122
16 162
17 168
18 174
19 194
20 210
21 213
22 221
23 276
24 282
25 291
26 301
27 381
28 384
29 386
30 408
31 414
32 437
33 469
34 510
35 527
36 533
37 564
38 594
39 597
40 616
41 723
42 731
43 744
44 770
45 791
46 794
47 858
48 869
49 896
50 917
51 930
52 948
53 952
54 954

List of values

[3, 9, 21, 24, 26, 30, 51, 72, 77, 84, 90, 93, 100, 119, 122, 162, 168, 174, 194, 210, 213, 221, 276, 282, 291, 301, 381, 384, 386, 408, 414, 437, 469, 510, 527, 533, 564, 594, 597, 616, 723, 731, 744, 770, 791, 794, 858, 869, 896, 917, 930, 948, 952, 954]