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 | 18 |
2 | 1620 |
3 | 211680 |
4 | 32744250 |
5 | 5578048476 |
6 | 1011486123648 |
7 | 191622065057280 |
8 | 37496545808513220 |
9 | 7522455177633825000 |
10 | 1539274868268143806800 |
11 | 320076654200479057190400 |
12 | 67449486609121784655852000 |
13 | 14374016718897406159444968000 |