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 | 0 |
| 2 | 384 |
| 3 | 12288 |
| 4 | 245760 |
| 5 | 3932160 |
| 6 | 55050240 |
| 7 | 704643072 |
| 8 | 8455716864 |
| 9 | 96636764160 |
| 10 | 1063004405760 |
| 11 | 11338713661440 |
| 12 | 117922622078976 |
| 13 | 1200666697531392 |
| 14 | 12006666975313920 |
| 15 | 118219490218475520 |
| 16 | 1148417904979476480 |
| 17 | 11024811887802974208 |
| 18 | 104735712934128254976 |