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.

A037387 Numbers k such that every base-4 digit of k is a base-5 digit of k.

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 10
6 15
7 21
8 28
9 37
10 38
11 42
12 58
13 63
14 76
15 80
16 86
17 132
18 136
19 137
20 138
21 142
22 152
23 160
24 167
25 178
26 183
27 190
28 191
29 202
30 204
31 205
32 210
33 213
34 214
35 215
36 217
37 220
38 221
39 222
40 223
41 238
42 240
43 256
44 257
45 258
46 261
47 266
48 276
49 277
50 278

List of values

[1, 2, 3, 5, 10, 15, 21, 28, 37, 38, 42, 58, 63, 76, 80, 86, 132, 136, 137, 138, 142, 152, 160, 167, 178, 183, 190, 191, 202, 204, 205, 210, 213, 214, 215, 217, 220, 221, 222, 223, 238, 240, 256, 257, 258, 261, 266, 276, 277, 278]