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.

A240763 Preferential arrangements of 1, 2, 3, ... things in one-line notation, arranged lexicographically.

Table of values

n a(n)
1 1
2 11
3 12
4 21
5 111
6 112
7 121
8 122
9 123
10 132
11 211
12 212
13 213
14 221
15 231
16 312
17 321
18 1111
19 1112
20 1121
21 1122
22 1123
23 1132
24 1211
25 1212
26 1213
27 1221
28 1222
29 1223
30 1231
31 1232
32 1233
33 1234
34 1243
35 1312
36 1321
37 1322
38 1323
39 1324
40 1332
41 1342
42 1423
43 1432
44 2111
45 2112
46 2113
47 2121
48 2122
49 2123
50 2131
51 2132
52 2133
53 2134
54 2143
55 2211
56 2212

List of values

[1, 11, 12, 21, 111, 112, 121, 122, 123, 132, 211, 212, 213, 221, 231, 312, 321, 1111, 1112, 1121, 1122, 1123, 1132, 1211, 1212, 1213, 1221, 1222, 1223, 1231, 1232, 1233, 1234, 1243, 1312, 1321, 1322, 1323, 1324, 1332, 1342, 1423, 1432, 2111, 2112, 2113, 2121, 2122, 2123, 2131, 2132, 2133, 2134, 2143, 2211, 2212]

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

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