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 | 25 |
| 3 | 14 |
| 4 | 1229 |
| 5 | 9592 |
| 6 | 39249 |
| 7 | 664579 |
| 8 | 5761455 |
| 9 | 50847534 |
| 10 | 455052511 |