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 | 4 |
| 4 | 5 |
| 5 | 10 |
| 6 | 27 |
| 7 | 94 |
| 8 | 151 |
| 9 | 245 |
| 10 | 296 |
| 11 | 349 |
| 12 | 396 |
| 13 | 435 |
| 14 | 1835 |
| 15 | 10235 |
| 16 | 18708 |
| 17 | 31637 |
| 18 | 53519 |
| 19 | 160958 |
| 20 | 535529 |
| 21 | 643427 |