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 | 0 |
3 | 0 |
4 | 6 |
5 | 30 |
6 | 0 |
7 | 720 |
8 | 5760 |
9 | 0 |
10 | 362880 |
11 | 5417280 |
12 | 17107200 |
13 | 479001600 |
14 | 8885479680 |
15 | 32691859200 |
16 | 1307674368000 |
17 | 34151856076800 |
18 | 214585052774400 |
19 | 6402373705728000 |
20 | 192796754895360000 |
21 | 1542202547010048000 |
22 | 55105230485200896000 |
23 | 1944933030182596608000 |