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.

A046422 Numbers requiring 2 steps to reach a prime under the prime factor concatenation procedure.

Table of values

n a(n)
1 4
2 9
3 24
4 30
5 32
6 36
7 38
8 42
9 50
10 55
11 57
12 60
13 68
14 74
15 75
16 88
17 92
18 94
19 99
20 102
21 106
22 108
23 110
24 122
25 134
26 140
27 155
28 158
29 174
30 194
31 206
32 209
33 215
34 231
35 244
36 254
37 272
38 280
39 287
40 298
41 299
42 306
43 314
44 323
45 332
46 334
47 346
48 351
49 362
50 365
51 371
52 374
53 398
54 413
55 415
56 417

List of values

[4, 9, 24, 30, 32, 36, 38, 42, 50, 55, 57, 60, 68, 74, 75, 88, 92, 94, 99, 102, 106, 108, 110, 122, 134, 140, 155, 158, 174, 194, 206, 209, 215, 231, 244, 254, 272, 280, 287, 298, 299, 306, 314, 323, 332, 334, 346, 351, 362, 365, 371, 374, 398, 413, 415, 417]