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 | 32 |
| 2 | 42 |
| 3 | 57 |
| 4 | 156 |
| 5 | 280 |
| 6 | 635 |
| 7 | 1247 |
| 8 | 2815 |
| 9 | 5524 |
| 10 | 12457 |
| 11 | 25230 |
| 12 | 55645 |
| 13 | 113410 |
| 14 | 249611 |
| 15 | 517232 |
| 16 | 1123390 |
| 17 | 2334467 |
| 18 | 5059272 |
| 19 | 10608909 |
| 20 | 22830143 |
| 21 | 47940869 |
| 22 | 102999865 |
| 23 | 217358333 |
| 24 | 465280120 |
| 25 | 982600249 |
| 26 | 2101097147 |
| 27 | 4449151154 |
| 28 | 9495603067 |