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 | 2 |
3 | 3 |
4 | 80 |
5 | 390 |
6 | 10764 |
7 | 104160 |
8 | 3162144 |
9 | 48889008 |
10 | 1647798480 |
11 | 35939566080 |
12 | 1347110453952 |
13 | 38272507827840 |
14 | 1593399505840128 |
15 | 55860824012535360 |
16 | 2575479834957911040 |
17 | 107239963351030433280 |
18 | 5453101063482843276288 |
19 | 262319113586136087567360 |