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.

A007821 Primes p such that pi(p) is not prime.

Table of values

n a(n)
1 2
2 7
3 13
4 19
5 23
6 29
7 37
8 43
9 47
10 53
11 61
12 71
13 73
14 79
15 89
16 97
17 101
18 103
19 107
20 113
21 131
22 137
23 139
24 149
25 151
26 163
27 167
28 173
29 181
30 193
31 197
32 199
33 223
34 227
35 229
36 233
37 239
38 251
39 257
40 263
41 269
42 271
43 281
44 293
45 307
46 311
47 313
48 317
49 337
50 347
51 349
52 359
53 373

List of values

[2, 7, 13, 19, 23, 29, 37, 43, 47, 53, 61, 71, 73, 79, 89, 97, 101, 103, 107, 113, 131, 137, 139, 149, 151, 163, 167, 173, 181, 193, 197, 199, 223, 227, 229, 233, 239, 251, 257, 263, 269, 271, 281, 293, 307, 311, 313, 317, 337, 347, 349, 359, 373]