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 | 648 |
| 2 | 2048 |
| 3 | 4608 |
| 4 | 5184 |
| 5 | 41472 |
| 6 | 52488 |
| 7 | 472392 |
| 8 | 500000 |
| 9 | 524288 |
| 10 | 2654208 |
| 11 | 3125000 |
| 12 | 4718592 |
| 13 | 10125000 |
| 14 | 13436928 |
| 15 | 21233664 |
| 16 | 30233088 |
| 17 | 46118408 |
| 18 | 76236552 |
| 19 | 134217728 |
| 20 | 169869312 |
| 21 | 344373768 |
| 22 | 402653184 |
| 23 | 512000000 |
| 24 | 648000000 |
| 25 | 737894528 |
| 26 | 800000000 |
| 27 | 838860800 |
| 28 | 922640625 |