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 | 10 |
| 3 | 28 |
| 4 | 50 |
| 5 | 56 |
| 6 | 874 |
| 7 | 1575 |
| 8 | 3604 |
| 9 | 4966 |
| 10 | 30704 |
| 11 | 55964 |
| 12 | 56372 |
| 13 | 145616 |
| 14 | 195016 |
| 15 | 200792 |
| 16 | 227278 |
| 17 | 1679518 |
| 18 | 2611874 |
| 19 | 3028502 |
| 20 | 23070602 |
| 21 | 27365684 |
| 22 | 45639626 |