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 | 3 |
2 | 21 |
3 | 246 |
4 | 3990 |
5 | 82800 |
6 | 2092560 |
7 | 62343600 |
8 | 2139137760 |
9 | 83064002160 |
10 | 3600715721040 |
11 | 172353630085920 |
12 | 9028586395211040 |
13 | 513740204261763840 |
14 | 31553316959017737600 |
15 | 2080500578006553619200 |
16 | 146577866381052082876800 |
17 | 10988979300484733769667200 |