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 | 1 |
| 2 | 18 |
| 3 | 384 |
| 4 | 1344 |
| 5 | 11520 |
| 6 | 6912 |
| 7 | 96768 |
| 8 | 92160 |
| 9 | 303264 |
| 10 | 207360 |
| 11 | 1584000 |
| 12 | 516096 |
| 13 | 4402944 |
| 14 | 1741824 |
| 15 | 4423680 |
| 16 | 6094848 |
| 17 | 22560768 |
| 18 | 5458752 |
| 19 | 44323200 |
| 20 | 15482880 |
| 21 | 37158912 |
| 22 | 28512000 |
| 23 | 141064704 |
| 24 | 35389440 |
| 25 | 186000000 |
| 26 | 79252992 |
| 27 | 226748160 |
| 28 | 130056192 |
| 29 | 572947200 |
| 30 | 79626240 |