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 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 11 |
| 7 | 21 |
| 8 | 36 |
| 9 | 57 |
| 10 | 127 |
| 11 | 253 |
| 12 | 463 |
| 13 | 793 |
| 14 | 1717 |
| 15 | 3433 |
| 16 | 6436 |
| 17 | 11441 |
| 18 | 24311 |
| 19 | 48621 |
| 20 | 92379 |
| 21 | 167961 |
| 22 | 352717 |
| 23 | 705433 |
| 24 | 1352079 |
| 25 | 2496145 |
| 26 | 5200301 |
| 27 | 10400601 |
| 28 | 20058301 |
| 29 | 37442161 |