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.

A171056 In the sequence of prime numbers, replace all the '9' digits with '7' and vice versa.

Table of values

n a(n)
1 2
2 3
3 5
4 9
5 11
6 13
7 19
8 17
9 23
10 27
11 31
12 39
13 41
14 43
15 49
16 53
17 57
18 61
19 69
20 91
21 93
22 97
23 83
24 87
25 79
26 101
27 103
28 109
29 107
30 113
31 129
32 131
33 139
34 137
35 147
36 151
37 159
38 163
39 169
40 193
41 197
42 181
43 171
44 173
45 179
46 177
47 211
48 223
49 229
50 227
51 233
52 237
53 241
54 251
55 259
56 263

List of values

[2, 3, 5, 9, 11, 13, 19, 17, 23, 27, 31, 39, 41, 43, 49, 53, 57, 61, 69, 91, 93, 97, 83, 87, 79, 101, 103, 109, 107, 113, 129, 131, 139, 137, 147, 151, 159, 163, 169, 193, 197, 181, 171, 173, 179, 177, 211, 223, 229, 227, 233, 237, 241, 251, 259, 263]