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.

A046424 Numbers requiring 4 steps to reach a prime under the prime factor concatenation procedure.

Table of values

n a(n)
1 10
2 15
3 16
4 26
5 27
6 95
7 118
8 119
9 121
10 132
11 145
12 202
13 204
14 217
15 286
16 295
17 302
18 308
19 354
20 361
21 370
22 377
23 400
24 437
25 451
26 453
27 455
28 471
29 474
30 483
31 506
32 518
33 526
34 528
35 530
36 545
37 567
38 600
39 610
40 616
41 635
42 649
43 650
44 654
45 655
46 672
47 699
48 700
49 718
50 720
51 722
52 735
53 745

List of values

[10, 15, 16, 26, 27, 95, 118, 119, 121, 132, 145, 202, 204, 217, 286, 295, 302, 308, 354, 361, 370, 377, 400, 437, 451, 453, 455, 471, 474, 483, 506, 518, 526, 528, 530, 545, 567, 600, 610, 616, 635, 649, 650, 654, 655, 672, 699, 700, 718, 720, 722, 735, 745]