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 | 255 |
| 2 | 385 |
| 3 | 34561 |
| 4 | 65535 |
| 5 | 147455 |
| 6 | 195841 |
| 7 | 1034881 |
| 8 | 4070401 |
| 9 | 4746241 |
| 10 | 5040001 |
| 11 | 16675201 |
| 12 | 22704001 |
| 13 | 36067201 |
| 14 | 47013121 |
| 15 | 83623935 |
| 16 | 136967041 |
| 17 | 168720001 |
| 18 | 271878145 |
| 19 | 549141119 |
| 20 | 613092481 |
| 21 | 836567041 |
| 22 | 1039779841 |
| 23 | 1049759999 |
| 24 | 1548072961 |
| 25 | 2556902401 |
| 26 | 2646067201 |