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 | 3 |
| 3 | 6 |
| 4 | 9 |
| 5 | 10 |
| 6 | 31 |
| 7 | 47 |
| 8 | 70 |
| 9 | 281 |
| 10 | 366 |
| 11 | 519 |
| 12 | 532 |
| 13 | 775 |
| 14 | 1566 |
| 15 | 1627 |
| 16 | 2247 |
| 17 | 2653 |
| 18 | 4381 |
| 19 | 4571 |
| 20 | 7513 |
| 21 | 10581 |
| 22 | 13239 |
| 23 | 15393 |
| 24 | 72267 |
| 25 | 105515 |
| 26 | 215802 |