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 | 12 |
| 2 | 144 |
| 3 | 756 |
| 4 | 3969 |
| 5 | 14112 |
| 6 | 50176 |
| 7 | 141120 |
| 8 | 396900 |
| 9 | 952560 |
| 10 | 2286144 |
| 11 | 4889808 |
| 12 | 10458756 |
| 13 | 20490624 |
| 14 | 40144896 |
| 15 | 73389888 |
| 16 | 134165889 |
| 17 | 231891660 |
| 18 | 400800400 |
| 19 | 661320660 |
| 20 | 1091179089 |
| 21 | 1731457728 |
| 22 | 2747437056 |
| 23 | 4216552704 |
| 24 | 6471237136 |