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 | 1 |
2 | 2 |
3 | 12 |
4 | 120 |
5 | 1600 |
6 | 28500 |
7 | 621138 |
8 | 16017792 |
9 | 480474720 |
10 | 16390969920 |
11 | 626786792280 |
12 | 26584872779520 |
13 | 1238524175509608 |
14 | 62873918454756864 |
15 | 3455537675553482400 |
16 | 204449393824639488000 |
17 | 12958008875933613962880 |