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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.

A376509 Natural numbers whose iterated squaring modulo 100 eventually enters the 4-cycle 21, 41, 81, 61.

Table of values

n a(n)
1 3
2 9
3 11
4 13
5 17
6 19
7 21
8 23
9 27
10 29
11 31
12 33
13 37
14 39
15 41
16 47
17 53
18 59
19 61
20 63
21 67
22 69
23 71
24 73
25 77
26 79
27 81
28 83
29 87
30 89
31 91
32 97
33 103
34 109
35 111
36 113
37 117
38 119
39 121
40 123
41 127
42 129
43 131
44 133
45 137
46 139
47 141
48 147
49 153
50 159
51 161
52 163
53 167
54 169
55 171
56 173
57 177
58 179
59 181

List of values

[3, 9, 11, 13, 17, 19, 21, 23, 27, 29, 31, 33, 37, 39, 41, 47, 53, 59, 61, 63, 67, 69, 71, 73, 77, 79, 81, 83, 87, 89, 91, 97, 103, 109, 111, 113, 117, 119, 121, 123, 127, 129, 131, 133, 137, 139, 141, 147, 153, 159, 161, 163, 167, 169, 171, 173, 177, 179, 181]

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

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