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.

A291798 Take n-th word over {1,2} listed in A291797 and apply the Post tag system described in A284116 (but adapted to the alphabet {1,2}); a(n) = preperiod (or threshold) of orbit of that word.

Table of values

n a(n)
1 3
2 4
3 6
4 2
5 17
6 15
7 9
8 11
9 13
10 14
11 16
12 12
13 24
14 10
15 12
16 19
17 14
18 23
19 21
20 4
21 13
22 9
23 25
24 11
25 29
26 27
27 3
28 7
29 420
30 25
31 15
32 24
33 28
34 6
35 17
36 19
37 28
38 4
39 26
40 21
41 23
42 419
43 6
44 417
45 46
46 24
47 8
48 5
49 421
50 26
51 28
52 415
53 12
54 413
55 10
56 44
57 27
58 10
59 40
60 22
61 84
62 411
63 18
64 20
65 29
66 9
67 11

List of values

[3, 4, 6, 2, 17, 15, 9, 11, 13, 14, 16, 12, 24, 10, 12, 19, 14, 23, 21, 4, 13, 9, 25, 11, 29, 27, 3, 7, 420, 25, 15, 24, 28, 6, 17, 19, 28, 4, 26, 21, 23, 419, 6, 417, 46, 24, 8, 5, 421, 26, 28, 415, 12, 413, 10, 44, 27, 10, 40, 22, 84, 411, 18, 20, 29, 9, 11]

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

Content is available under The OEIS End-User License Agreement.