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 | 255 |
| 3 | 6305 |
| 4 | 6560 |
| 5 | 58975 |
| 6 | 65280 |
| 7 | 65535 |
| 8 | 325089 |
| 9 | 384064 |
| 10 | 390369 |
| 11 | 390624 |
| 12 | 1288991 |
| 13 | 1614080 |
| 14 | 1673055 |
| 15 | 1679360 |
| 16 | 1679615 |
| 17 | 4085185 |
| 18 | 5374176 |
| 19 | 5699265 |
| 20 | 5758240 |
| 21 | 5764545 |
| 22 | 5764800 |
| 23 | 11012415 |
| 24 | 15097600 |
| 25 | 16386591 |
| 26 | 16711680 |
| 27 | 16770655 |
| 28 | 16776960 |