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 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| 10 | 10 |
| 11 | 53 |
| 12 | 106 |
| 13 | 298 |
| 14 | 5790 |
| 15 | 7594 |
| 16 | 14650 |
| 17 | 15576 |
| 18 | 41612 |
| 19 | 66049 |
| 20 | 150564 |
| 21 | 154476 |
| 22 | 154484 |