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 | 3 |
| 3 | 4 |
| 4 | 12 |
| 5 | 73 |
| 6 | 317 |
| 7 | 2728 |
| 8 | 6826 |
| 9 | 7683 |
| 10 | 7950 |
| 11 | 14417 |
| 12 | 44436 |
| 13 | 63698 |