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 | 0 |
| 2 | 2 |
| 3 | 5 |
| 4 | 9 |
| 5 | 23 |
| 6 | 49 |
| 7 | 76 |
| 8 | 77 |
| 9 | 135 |
| 10 | 377 |
| 11 | 378 |
| 12 | 1394 |
| 13 | 1395 |
| 14 | 1397 |
| 15 | 1398 |
| 16 | 1467 |
| 17 | 1475 |
| 18 | 2683 |
| 19 | 2861 |
| 20 | 3383 |
| 21 | 3384 |
| 22 | 4297 |
| 23 | 7573 |
| 24 | 10850 |
| 25 | 10851 |