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 | 2 |
| 2 | 3 |
| 3 | 29 |
| 4 | 127 |
| 5 | 24391 |
| 6 | 91127 |
| 7 | 250049 |
| 8 | 274627 |
| 9 | 328511 |
| 10 | 357913 |
| 11 | 571789 |
| 12 | 1157627 |
| 13 | 1442899 |
| 14 | 1860869 |
| 15 | 2146691 |
| 16 | 2924209 |
| 17 | 3581579 |
| 18 | 5000213 |
| 19 | 5177719 |
| 20 | 6751271 |
| 21 | 9129331 |
| 22 | 9938377 |
| 23 | 10503461 |
| 24 | 12326393 |
| 25 | 14348909 |
| 26 | 14706127 |
| 27 | 15438251 |
| 28 | 18191449 |