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.

A097457 If n is prime replace with the n-th nonprime otherwise replace with the n-th prime.

Table of values

n a(n)
1 2
2 4
3 6
4 7
5 9
6 13
7 12
8 19
9 23
10 29
11 18
12 37
13 21
14 43
15 47
16 53
17 26
18 61
19 28
20 71
21 73
22 79
23 34
24 89
25 97
26 101
27 103
28 107
29 42
30 113
31 45
32 131
33 137
34 139
35 149
36 151
37 52
38 163
39 167
40 173
41 57
42 181
43 60
44 193
45 197
46 199
47 65
48 223
49 227
50 229
51 233
52 239
53 74
54 251
55 257
56 263
57 269
58 271
59 81
60 281
61 84
62 293

List of values

[2, 4, 6, 7, 9, 13, 12, 19, 23, 29, 18, 37, 21, 43, 47, 53, 26, 61, 28, 71, 73, 79, 34, 89, 97, 101, 103, 107, 42, 113, 45, 131, 137, 139, 149, 151, 52, 163, 167, 173, 57, 181, 60, 193, 197, 199, 65, 223, 227, 229, 233, 239, 74, 251, 257, 263, 269, 271, 81, 281, 84, 293]

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

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