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.

A169884 Numbers consisting of either all even digits or just 5's and 0's.

Table of values

n a(n)
1 0
2 2
3 4
4 5
5 6
6 8
7 20
8 22
9 24
10 26
11 28
12 40
13 42
14 44
15 46
16 48
17 50
18 55
19 60
20 62
21 64
22 66
23 68
24 80
25 82
26 84
27 86
28 88
29 200
30 202
31 204
32 206
33 208
34 220
35 222
36 224
37 226
38 228
39 240
40 242
41 244
42 246
43 248
44 260
45 262
46 264
47 266
48 268
49 280
50 282
51 284
52 286
53 288
54 400
55 402
56 404
57 406

List of values

[0, 2, 4, 5, 6, 8, 20, 22, 24, 26, 28, 40, 42, 44, 46, 48, 50, 55, 60, 62, 64, 66, 68, 80, 82, 84, 86, 88, 200, 202, 204, 206, 208, 220, 222, 224, 226, 228, 240, 242, 244, 246, 248, 260, 262, 264, 266, 268, 280, 282, 284, 286, 288, 400, 402, 404, 406]