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 | 4913 |
| 2 | 6859 |
| 3 | 166375 |
| 4 | 704969 |
| 5 | 2048383 |
| 6 | 4173281 |
| 7 | 7880599 |
| 8 | 12649337 |
| 9 | 15438249 |
| 10 | 15813251 |
| 11 | 19902511 |
| 12 | 28372625 |
| 13 | 34328125 |
| 14 | 40353607 |
| 15 | 53582633 |
| 16 | 71473375 |
| 17 | 90518849 |
| 18 | 115501303 |
| 19 | 141420761 |
| 20 | 174676879 |
| 21 | 208527857 |
| 22 | 251239591 |
| 23 | 294079625 |