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 | 24 |
5 | 120 |
6 | 3240 |
7 | 45360 |
8 | 584640 |
9 | 13668480 |
10 | 322963200 |
11 | 7224940800 |
12 | 201040963200 |
13 | 6254004556800 |
14 | 197219089267200 |
15 | 6845849673062400 |
16 | 260976932536320000 |
17 | 10410615332941824000 |
18 | 441056225586706329600 |
19 | 20015606466369626112000 |
20 | 955852013167308601344000 |
21 | 47944066629381635801088000 |