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.

A267301 Earliest positive increasing sequence having no 5-term subsequence with constant second differences.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 6
6 7
7 8
8 9
9 12
10 14
11 17
12 20
13 21
14 23
15 25
16 31
17 32
18 37
19 46
20 47
21 53
22 56
23 61
24 63
25 64
26 67
27 70
28 72
29 76
30 87
31 90
32 93
33 104
34 112
35 116
36 120
37 135
38 138
39 146
40 153
41 164
42 177
43 179
44 180
45 197
46 201
47 221
48 224
49 276
50 277
51 279
52 282
53 283
54 285
55 287
56 295
57 305
58 317
59 320
60 327
61 340
62 354
63 361
64 364
65 377
66 380
67 385
68 391
69 403
70 415
71 424
72 430
73 443

List of values

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 17, 20, 21, 23, 25, 31, 32, 37, 46, 47, 53, 56, 61, 63, 64, 67, 70, 72, 76, 87, 90, 93, 104, 112, 116, 120, 135, 138, 146, 153, 164, 177, 179, 180, 197, 201, 221, 224, 276, 277, 279, 282, 283, 285, 287, 295, 305, 317, 320, 327, 340, 354, 361, 364, 377, 380, 385, 391, 403, 415, 424, 430, 443]