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 | 2 |
3 | 12 |
4 | 108 |
5 | 1320 |
6 | 20280 |
7 | 374640 |
8 | 8072400 |
9 | 198465120 |
10 | 5475284640 |
11 | 167285321280 |
12 | 5600184004800 |
13 | 203602252613760 |
14 | 7978382871338880 |
15 | 334767145102790400 |
16 | 14952953514231532800 |
17 | 707221717016278464000 |
18 | 35242469168705967168000 |
19 | 1841491290250262851200000 |