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.

A039933 Smallest k for which k, 2k, ... n*k all contain the digit 2.

Table of values

n a(n)
1 2
2 12
3 124
4 624
5 624
6 642
7 4062
8 4062
9 4128
10 4128
11 23041
12 23041
13 23041
14 23041
15 144032
16 144032
17 144032
18 144032
19 144032
20 144032
21 144032
22 1201804
23 1201804
24 1201804
25 1276048
26 1276048
27 1276048
28 1276048
29 1276048
30 1276048
31 8020604

List of values

[2, 12, 124, 624, 624, 642, 4062, 4062, 4128, 4128, 23041, 23041, 23041, 23041, 144032, 144032, 144032, 144032, 144032, 144032, 144032, 1201804, 1201804, 1201804, 1276048, 1276048, 1276048, 1276048, 1276048, 1276048, 8020604]