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 | 0 |
2 | 0 |
3 | 6 |
4 | 12 |
5 | 40 |
6 | 4500 |
7 | 36288 |
8 | 302400 |
9 | 21280320 |
10 | 372808800 |
11 | 5690583360 |
12 | 328776433920 |
13 | 9448800042240 |
14 | 224460513268992 |
15 | 12193757153424000 |
16 | 487602908139110400 |
17 | 16244434378146723840 |
18 | 899553800205694310400 |
19 | 45212291317983663820800 |