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 | 1 |
| 3 | 61 |
| 4 | 61 |
| 5 | 11371 |
| 6 | 11371 |
| 7 | 7392171 |
| 8 | 168776043 |
| 9 | 1584614377 |
| 10 | 38045133481 |
| 11 | 30386250649371 |
| 12 | 1848289766450821 |