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.

A063013 Numbers where k-th digit from right is either 0 or k.

Table of values

n a(n)
0 0
1 1
2 20
3 21
4 300
5 301
6 320
7 321
8 4000
9 4001
10 4020
11 4021
12 4300
13 4301
14 4320
15 4321
16 50000
17 50001
18 50020
19 50021
20 50300
21 50301
22 50320
23 50321
24 54000
25 54001
26 54020
27 54021
28 54300
29 54301
30 54320
31 54321
32 600000
33 600001
34 600020
35 600021
36 600300
37 600301
38 600320
39 600321

List of values

[0, 1, 20, 21, 300, 301, 320, 321, 4000, 4001, 4020, 4021, 4300, 4301, 4320, 4321, 50000, 50001, 50020, 50021, 50300, 50301, 50320, 50321, 54000, 54001, 54020, 54021, 54300, 54301, 54320, 54321, 600000, 600001, 600020, 600021, 600300, 600301, 600320, 600321]

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

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