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) |
|---|---|
| 0 | 1 |
| 1 | 22 |
| 2 | 484 |
| 3 | 11248 |
| 4 | 260904 |
| 5 | 6434922 |
| 6 | 158069690 |
| 7 | 4126252938 |
| 8 | 107097735673 |
| 9 | 2940365284820 |