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.

A289206 Greedy strictly increasing sequence starting at a(1)=1 avoiding both arithmetic and geometric progressions of length 3.

Table of values

n a(n)
1 1
2 2
3 5
4 6
5 12
6 13
7 15
8 16
9 32
10 33
11 35
12 39
13 40
14 42
15 56
16 81
17 84
18 85
19 88
20 90
21 93
22 94
23 108
24 109
25 113
26 115
27 116
28 159
29 189
30 207
31 208
32 222
33 223
34 232
35 235
36 240
37 243
38 244
39 249
40 250
41 252
42 259
43 267
44 271
45 289
46 304
47 314
48 318
49 325
50 340
51 342
52 397
53 504
54 508
55 511
56 531
57 549

List of values

[1, 2, 5, 6, 12, 13, 15, 16, 32, 33, 35, 39, 40, 42, 56, 81, 84, 85, 88, 90, 93, 94, 108, 109, 113, 115, 116, 159, 189, 207, 208, 222, 223, 232, 235, 240, 243, 244, 249, 250, 252, 259, 267, 271, 289, 304, 314, 318, 325, 340, 342, 397, 504, 508, 511, 531, 549]

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

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