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.

A347298 Numbers that contain an even digit d immediately followed by a digit <= d.

Table of values

n a(n)
1 20
2 21
3 22
4 40
5 41
6 42
7 43
8 44
9 60
10 61
11 62
12 63
13 64
14 65
15 66
16 80
17 81
18 82
19 83
20 84
21 85
22 86
23 87
24 88
25 100
26 120
27 121
28 122
29 140
30 141
31 142
32 143
33 144
34 160
35 161
36 162
37 163
38 164
39 165
40 166
41 180
42 181
43 182
44 183
45 184
46 185
47 186
48 187
49 188
50 200
51 201
52 202
53 203
54 204
55 205
56 206
57 207
58 208
59 209
60 210
61 211
62 212
63 213
64 214
65 215

List of values

[20, 21, 22, 40, 41, 42, 43, 44, 60, 61, 62, 63, 64, 65, 66, 80, 81, 82, 83, 84, 85, 86, 87, 88, 100, 120, 121, 122, 140, 141, 142, 143, 144, 160, 161, 162, 163, 164, 165, 166, 180, 181, 182, 183, 184, 185, 186, 187, 188, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215]

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

Content is available under The OEIS End-User License Agreement.