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 | 1 |
| 2 | 2 |
| 3 | 13 |
| 4 | 11 |
| 5 | 23 |
| 6 | 19 |
| 7 | 59 |
| 8 | 53 |
| 9 | 127 |
| 10 | 113 |
| 11 | 277 |
| 12 | 271 |
| 13 | 631 |
| 14 | 619 |
| 15 | 1409 |
| 16 | 1399 |
| 17 | 1823 |
| 18 | 3967 |
| 19 | 3947 |
| 20 | 8783 |
| 21 | 8779 |
| 22 | 18257 |
| 23 | 18253 |
| 24 | 25873 |