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.

A164572 Numbers k such that k and k+4 are both prime powers.

Table of values

n a(n)
1 1
2 3
3 4
4 5
5 7
6 9
7 13
8 19
9 23
10 25
11 27
12 37
13 43
14 49
15 67
16 79
17 97
18 103
19 109
20 121
21 127
22 163
23 169
24 193
25 223
26 229
27 239
28 277
29 289
30 307
31 313
32 343
33 349
34 379
35 397
36 439
37 457
38 463
39 487
40 499
41 613
42 643
43 673
44 729
45 739
46 757
47 769
48 823
49 853
50 859
51 877
52 883
53 907
54 937
55 967
56 1009
57 1087

List of values

[1, 3, 4, 5, 7, 9, 13, 19, 23, 25, 27, 37, 43, 49, 67, 79, 97, 103, 109, 121, 127, 163, 169, 193, 223, 229, 239, 277, 289, 307, 313, 343, 349, 379, 397, 439, 457, 463, 487, 499, 613, 643, 673, 729, 739, 757, 769, 823, 853, 859, 877, 883, 907, 937, 967, 1009, 1087]