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 | 6 |
4 | 60 |
5 | 480 |
6 | 5880 |
7 | 75600 |
8 | 1197840 |
9 | 20865600 |
10 | 415074240 |
11 | 9067766400 |
12 | 218808596160 |
13 | 5739600746880 |
14 | 163303845344640 |
15 | 4998933984844800 |
16 | 164036362839148800 |
17 | 5740920215225395200 |
18 | 213551108122018867200 |
19 | 8412438143909940940800 |
20 | 349915152951011468620800 |