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 | 190 |
| 4 | 280 |
| 5 | 480 |
| 6 | 1073 |
| 7 | 1674 |
| 8 | 1736 |
| 9 | 4850 |
| 10 | 15867 |
| 11 | 16230 |
| 12 | 16302 |
| 13 | 23715 |
| 14 | 24056 |
| 15 | 25064 |
| 16 | 35712 |
| 17 | 52976 |
| 18 | 54730 |
| 19 | 75184 |
| 20 | 105342 |
| 21 | 456382 |
| 22 | 964325 |