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 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 10 |
| 6 | 15 |
| 7 | 98 |
| 8 | 111 |
| 9 | 118 |
| 10 | 236 |
| 11 | 280 |
| 12 | 512 |
| 13 | 1284 |
| 14 | 1303 |
| 15 | 1818 |
| 16 | 2525 |
| 17 | 2692 |
| 18 | 4620 |
| 19 | 8405 |
| 20 | 11539 |
| 21 | 13190 |
| 22 | 21525 |
| 23 | 30338 |
| 24 | 48069 |
| 25 | 50687 |
| 26 | 56208 |
| 27 | 56620 |
| 28 | 81091 |
| 29 | 101488 |