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 | 6 |
| 6 | 10 |
| 7 | 12 |
| 8 | 14 |
| 9 | 18 |
| 10 | 19 |
| 11 | 53 |
| 12 | 703 |
| 13 | 1824 |
| 14 | 2185 |
| 15 | 2546 |
| 16 | 5054 |
| 17 | 6594 |
| 18 | 9841 |
| 19 | 1393056 |
| 20 | 1648110 |
| 21 | 1984492 |
| 22 | 2648114 |
| 23 | 3430811 |
| 24 | 8070122 |