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 | 72 |
| 2 | 756 |
| 3 | 2184 |
| 4 | 5742 |
| 5 | 10584 |
| 6 | 19656 |
| 7 | 26712 |
| 8 | 49140 |
| 9 | 59208 |
| 10 | 88452 |
| 11 | 111888 |
| 12 | 159432 |
| 13 | 171864 |
| 14 | 260064 |
| 15 | 275184 |
| 16 | 364734 |
| 17 | 412776 |
| 18 | 532872 |
| 19 | 534744 |
| 20 | 772632 |
| 21 | 751296 |
| 22 | 935064 |
| 23 | 1022112 |
| 24 | 1277640 |
| 25 | 1229328 |
| 26 | 1661688 |
| 27 | 1598856 |
| 28 | 1959696 |
| 29 | 2048760 |
| 30 | 2476656 |
| 31 | 2321928 |