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.

A164766 Smallest number m such that exactly n odd numbers can be seen as proper subsequences of m in decimal representation.

Table of values

n a(n)
0 1
1 10
2 13
3 103
4 113
5 131
6 135
7 1013
8 1031
9 1035
10 1135
11 1231
12 1235
13 1351
14 1357
15 10325
16 10213
17 10135
18 10235
19 10315
20 10351
21 10357
22 11357
23 12431
24 12135
25 13251
26 12315
27 12351
28 12357
29 13571
30 13579
31 101315
32 101235
33 103057
34 101351
35 102431
36 102353
37 101357
38 102135
39 103257

List of values

[1, 10, 13, 103, 113, 131, 135, 1013, 1031, 1035, 1135, 1231, 1235, 1351, 1357, 10325, 10213, 10135, 10235, 10315, 10351, 10357, 11357, 12431, 12135, 13251, 12315, 12351, 12357, 13571, 13579, 101315, 101235, 103057, 101351, 102431, 102353, 101357, 102135, 103257]

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

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