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.

A215940 Difference between the n-th and the first (identity) permutation of (0,...,m-1), interpreted as a decimal number, divided by 9 (for any m for which 10! >= m! >= n).

Table of values

n a(n)
1 0
2 1
3 10
4 12
5 21
6 22
7 100
8 101
9 120
10 123
11 131
12 133
13 210
14 212
15 220
16 223
17 242
18 243
19 321
20 322
21 331
22 333
23 342
24 343
25 1000
26 1001
27 1010
28 1012
29 1021
30 1022
31 1200
32 1201
33 1230
34 1234
35 1241
36 1244
37 1310
38 1312
39 1330
40 1334
41 1352
42 1354
43 1421
44 1422
45 1441
46 1444
47 1452
48 1454
49 2100

List of values

[0, 1, 10, 12, 21, 22, 100, 101, 120, 123, 131, 133, 210, 212, 220, 223, 242, 243, 321, 322, 331, 333, 342, 343, 1000, 1001, 1010, 1012, 1021, 1022, 1200, 1201, 1230, 1234, 1241, 1244, 1310, 1312, 1330, 1334, 1352, 1354, 1421, 1422, 1441, 1444, 1452, 1454, 2100]