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.

A163468 Indices k such that half of the k-th nonprime nonnegative integer is prime.

Table of values

n a(n)
1 3
2 4
3 7
4 9
5 15
6 18
7 24
8 27
9 33
10 43
11 45
12 54
13 61
14 64
15 71
16 80
17 89
18 93
19 103
20 109
21 113
22 122
23 129
24 139
25 151
26 157
27 161
28 168
29 172
30 179
31 201
32 208
33 217
34 220
35 237
36 241
37 250
38 261
39 268
40 279
41 288
42 291
43 308
44 311
45 318
46 321
47 341
48 361
49 368
50 371
51 377
52 388
53 391
54 408
55 418
56 428
57 440

List of values

[3, 4, 7, 9, 15, 18, 24, 27, 33, 43, 45, 54, 61, 64, 71, 80, 89, 93, 103, 109, 113, 122, 129, 139, 151, 157, 161, 168, 172, 179, 201, 208, 217, 220, 237, 241, 250, 261, 268, 279, 288, 291, 308, 311, 318, 321, 341, 361, 368, 371, 377, 388, 391, 408, 418, 428, 440]