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.

A256935 Concatenation of odd prime factors of numbers whose digits are all odd.

Table of values

n a(n)
1 0
2 3
3 5
4 7
5 33
6 11
7 13
8 35
9 17
10 19
11 31
12 311
13 57
14 37
15 313
16 317
17 53
18 511
19 319
20 59
21 71
22 73
23 355
24 711
25 79
26 713
27 331
28 519
29 97
30 3311
31 337
32 113
33 523
34 3313
35 717
36 131
37 719
38 3335
39 137
40 139
41 151
42 3317
43 531
44 157
45 353
46 3319
47 173
48 557
49 359
50 179
51 191
52 193
53 3513
54 197
55 199
56 311
57 313
58 3357
59 317
60 1129
61 331
62 3337
63 567

List of values

[0, 3, 5, 7, 33, 11, 13, 35, 17, 19, 31, 311, 57, 37, 313, 317, 53, 511, 319, 59, 71, 73, 355, 711, 79, 713, 331, 519, 97, 3311, 337, 113, 523, 3313, 717, 131, 719, 3335, 137, 139, 151, 3317, 531, 157, 353, 3319, 173, 557, 359, 179, 191, 193, 3513, 197, 199, 311, 313, 3357, 317, 1129, 331, 3337, 567]