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) |
---|---|
1 | 1 |
2 | 120 |
3 | 1680 |
4 | 8960 |
5 | 25344 |
6 | 30750720 |
7 | 53248 |
8 | 167116800 |
9 | 1333592064 |
10 | 2739404800 |
11 | 72351744 |
12 | 526720696320 |
13 | 419430400 |
14 | 525462405120 |
15 | 55745722712064 |
16 | 45268955299840 |
17 | 141733920768 |
18 | 3462000479620300800 |
19 | 2542620639232 |
20 | 483482750523801600 |
21 | 284950532966055936 |