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.

A247700 Numbers which have d digits "d", whenever one of their digits is "d", ordered by largest digit, then by size of the number.

Table of values

n a(n)
1 1
2 22
3 122
4 212
5 221
6 333
7 1333
8 3133
9 3313
10 3331
11 22333
12 23233
13 23323
14 23332
15 32233
16 32323
17 32332
18 33223
19 33232
20 33322
21 122333
22 123233
23 123323
24 123332
25 132233
26 132323
27 132332
28 133223
29 133232
30 133322
31 212333
32 213233
33 213323
34 213332

List of values

[1, 22, 122, 212, 221, 333, 1333, 3133, 3313, 3331, 22333, 23233, 23323, 23332, 32233, 32323, 32332, 33223, 33232, 33322, 122333, 123233, 123323, 123332, 132233, 132323, 132332, 133223, 133232, 133322, 212333, 213233, 213323, 213332]

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

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