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.

A175131 a(n) = 2^(n-1) mod semiprime(n).

Table of values

n a(n)
1 1
2 2
3 4
4 8
5 2
6 2
7 1
8 18
9 6
10 18
11 1
12 8
13 1
14 22
15 4
16 16
17 23
18 2
19 14
20 2
21 52
22 2
23 49
24 2
25 10
26 65
27 64
28 8
29 44
30 2
31 64
32 2
33 42
34 12
35 62
36 56
37 31
38 98
39 81
40 50
41 74
42 2
43 1
44 128
45 96
46 71
47 60
48 7
49 81
50 16
51 94
52 146
53 1
54 144
55 108
56 154
57 133
58 4
59 46
60 153
61 67
62 44
63 88
64 90
65 198
66 32
67 14
68 117

List of values

[1, 2, 4, 8, 2, 2, 1, 18, 6, 18, 1, 8, 1, 22, 4, 16, 23, 2, 14, 2, 52, 2, 49, 2, 10, 65, 64, 8, 44, 2, 64, 2, 42, 12, 62, 56, 31, 98, 81, 50, 74, 2, 1, 128, 96, 71, 60, 7, 81, 16, 94, 146, 1, 144, 108, 154, 133, 4, 46, 153, 67, 44, 88, 90, 198, 32, 14, 117]