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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.

A078243 Smallest multiple of n using only digits 0 and 4.

Table of values

n a(n)
1 4
2 4
3 444
4 4
5 40
6 444
7 4004
8 40
9 444444444
10 40
11 44
12 444
13 4004
14 4004
15 4440
16 400
17 44404
18 444444444
19 44004
20 40
21 40404
22 44
23 440404
24 4440
25 400
26 4004
27 4404444444
28 4004
29 4404404
30 4440
31 444044
32 4000
33 444444
34 44404
35 40040
36 444444444
37 444
38 44004
39 40404

List of values

[4, 4, 444, 4, 40, 444, 4004, 40, 444444444, 40, 44, 444, 4004, 4004, 4440, 400, 44404, 444444444, 44004, 40, 40404, 44, 440404, 4440, 400, 4004, 4404444444, 4004, 4404404, 4440, 444044, 4000, 444444, 44404, 40040, 444444444, 444, 44004, 40404]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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