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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.

A096681 Least k such that decimal representation of k*n contains only digits 0 and 2.

Table of values

n a(n)
1 2
2 1
3 74
4 5
5 4
6 37
7 286
8 25
9 24691358
10 2
11 2
12 185
13 154
14 143
15 148
16 125
17 1306
18 12345679
19 1158
20 1
21 962
22 1
23 9574
24 925
25 8
26 77
27 81563786
28 715
29 75938
30 74
31 7162
32 625
33 6734
34 653
35 572
36 61728395
37 6
38 579
39 518
40 5
41 542
42 481
43 51214
44 5
45 49382716
46 4787
47 426
48 4625
49 44898
50 4

List of values

[2, 1, 74, 5, 4, 37, 286, 25, 24691358, 2, 2, 185, 154, 143, 148, 125, 1306, 12345679, 1158, 1, 962, 1, 9574, 925, 8, 77, 81563786, 715, 75938, 74, 7162, 625, 6734, 653, 572, 61728395, 6, 579, 518, 5, 542, 481, 51214, 5, 49382716, 4787, 426, 4625, 44898, 4]

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

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