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 | 2 |
| 4 | 6 |
| 5 | 2 |
| 6 | 14 |
| 7 | 2 |
| 8 | 90 |
| 9 | 18 |
| 10 | 80 |
| 11 | 230 |
| 12 | 80 |
| 13 | 354 |
| 14 | 84 |
| 15 | 84 |
| 16 | 1782 |
| 17 | 450 |
| 18 | 828 |
| 19 | 2562 |
| 20 | 2502 |
| 21 | 6882 |
| 22 | 9288 |
| 23 | 890 |
| 24 | 16022 |
| 25 | 11088 |
| 26 | 31034 |
| 27 | 7272 |
| 28 | 92372 |