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.

A281336 a(n) is the smallest composite number having the same base-n digits (both type and quantity) as its prime factors (with multiplicity).

Table of values

n a(n)
2 159
3 7847
4 1135
5 83494
6 57
7 30057
8 85
9 72646
10 1255
11 18193
12 185
13 101212405
14 4119
15 63791
16 88357
17 31054582
18 489
19 4196517
20 451
21 4598494
22 13315
23 1012985
24 679
25 7009758597
26 26533
27 2884373
28 985
29 646372334
30 1057
31 989775393
32 1285
33 1395750166
34 179503
35 73294351
36 1387

List of values

[159, 7847, 1135, 83494, 57, 30057, 85, 72646, 1255, 18193, 185, 101212405, 4119, 63791, 88357, 31054582, 489, 4196517, 451, 4598494, 13315, 1012985, 679, 7009758597, 26533, 2884373, 985, 646372334, 1057, 989775393, 1285, 1395750166, 179503, 73294351, 1387]