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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.

A179077 a(n) is the residue ((2^p - 2)/p) mod p, where p is the n-th prime.

Table of values

n a(n)
1 1
2 2
3 1
4 4
5 10
6 6
7 9
8 6
9 11
10 2
11 12
12 2
13 5
14 7
15 41
16 19
17 16
18 11
19 20
20 4
21 39
22 38
23 13
24 12
25 17
26 83
27 15
28 26
29 25
30 53
31 36
32 34
33 106
34 60
35 43
36 112
37 7
38 134
39 94
40 6
41 100
42 115
43 100
44 15
45 153
46 71
47 7
48 155
49 175
50 136
51 14
52 52
53 43
54 243
55 193
56 256
57 251
58 218
59 140
60 148
61 116
62 156
63 281
64 39
65 240
66 33
67 278

List of values

[1, 2, 1, 4, 10, 6, 9, 6, 11, 2, 12, 2, 5, 7, 41, 19, 16, 11, 20, 4, 39, 38, 13, 12, 17, 83, 15, 26, 25, 53, 36, 34, 106, 60, 43, 112, 7, 134, 94, 6, 100, 115, 100, 15, 153, 71, 7, 155, 175, 136, 14, 52, 43, 243, 193, 256, 251, 218, 140, 148, 116, 156, 281, 39, 240, 33, 278]

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

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