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.
n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 2 |
4 | 6 |
5 | 3 |
6 | 24 |
7 | 20 |
8 | 120 |
9 | 90 |
10 | 40 |
11 | 15 |
12 | 720 |
13 | 504 |
14 | 420 |
15 | 210 |
16 | 5040 |
17 | 3360 |
18 | 2688 |
19 | 1260 |
20 | 1260 |
21 | 1120 |
22 | 105 |
23 | 40320 |
24 | 25920 |
25 | 20160 |
26 | 18144 |
27 | 9072 |
28 | 15120 |
29 | 2240 |
30 | 2520 |
31 | 362880 |
32 | 226800 |
33 | 172800 |
34 | 151200 |
35 | 72576 |
36 | 75600 |
37 | 120960 |
38 | 56700 |
39 | 50400 |
40 | 18900 |
41 | 25200 |
42 | 945 |