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.

A107650 Numbers n such that both numbers n/(d_1*d_2* ...*d_k) and n/(d_1+d_2+ ... +d_k) are prime, where d_1 d_2 ... d_k is the decimal expansion of n.

Table of values

n a(n)
1 11133
2 11331
3 13131
4 31113
5 112116
6 121116
7 13111212
8 111311115
9 11114112112
10 111212112112
11 1111111711311
12 1111171111113
13 11111111112611112
14 11111111121161112
15 11111112111161112
16 11111119111131111
17 11111131111119111
18 11111139111111111
19 11111193111111111
20 11111211161111112
21 11111611111211112
22 11116111112111112
23 11116111211111112

List of values

[11133, 11331, 13131, 31113, 112116, 121116, 13111212, 111311115, 11114112112, 111212112112, 1111111711311, 1111171111113, 11111111112611112, 11111111121161112, 11111112111161112, 11111119111131111, 11111131111119111, 11111139111111111, 11111193111111111, 11111211161111112, 11111611111211112, 11116111112111112, 11116111211111112]