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.

A005487 Starts 0, 4 and contains no 3-term arithmetic progression.

Table of values

n a(n)
0 0
1 4
2 5
3 7
4 11
5 12
6 16
7 23
8 26
9 31
10 33
11 37
12 38
13 44
14 49
15 56
16 73
17 78
18 80
19 85
20 95
21 99
22 106
23 124
24 128
25 131
26 136
27 143
28 169
29 188
30 197
31 203
32 220
33 221
34 226
35 227
36 238
37 247
38 259
39 269
40 276
41 284
42 287
43 302
44 308
45 310
46 313
47 319
48 337
49 385
50 392
51 397
52 422
53 434
54 455
55 466
56 470

List of values

[0, 4, 5, 7, 11, 12, 16, 23, 26, 31, 33, 37, 38, 44, 49, 56, 73, 78, 80, 85, 95, 99, 106, 124, 128, 131, 136, 143, 169, 188, 197, 203, 220, 221, 226, 227, 238, 247, 259, 269, 276, 284, 287, 302, 308, 310, 313, 319, 337, 385, 392, 397, 422, 434, 455, 466, 470]