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.

A138004 Odd numbers k for which all nontrivial cycles of the Ducci map on k-tuples modulo 2 have the same length.

Table of values

n a(n)
1 3
2 5
3 7
4 11
5 13
6 19
7 23
8 29
9 31
10 37
11 43
12 47
13 53
14 59
15 61
16 67
17 71
18 79
19 83
20 89
21 101
22 103
23 107
24 127
25 131
26 139
27 149
28 151
29 157
30 163
31 167
32 173
33 179
34 181
35 191
36 197
37 199
38 211
39 223
40 227
41 233
42 239
43 251
44 263
45 269
46 271
47 281
48 283
49 293
50 307
51 311
52 313
53 317
54 347
55 349
56 359
57 367
58 373
59 379
60 383
61 389

List of values

[3, 5, 7, 11, 13, 19, 23, 29, 31, 37, 43, 47, 53, 59, 61, 67, 71, 79, 83, 89, 101, 103, 107, 127, 131, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 197, 199, 211, 223, 227, 233, 239, 251, 263, 269, 271, 281, 283, 293, 307, 311, 313, 317, 347, 349, 359, 367, 373, 379, 383, 389]