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 | 4 |
| 2 | 57 |
| 3 | 664 |
| 4 | 7068 |
| 5 | 73130 |
| 6 | 747244 |
| 7 | 7590269 |
| 8 | 76830140 |
| 9 | 775940042 |
| 10 | 7824134360 |