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) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 7 |
4 | 24 |
5 | 180 |
6 | 1200 |
7 | 10080 |
8 | 97440 |
9 | 997920 |
10 | 12096000 |
11 | 149688000 |
12 | 2128896000 |
13 | 31135104000 |
14 | 515804889600 |
15 | 8717829120000 |
16 | 162151621632000 |
17 | 3092504583168000 |
18 | 63934815200256000 |
19 | 1366817864315904000 |
20 | 31019500604252160000 |
21 | 733013100880220160000 |