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 | 11 |
| 2 | 13 |
| 3 | 13 |
| 4 | 367 |
| 5 | 4987 |
| 6 | 9697 |
| 7 | 78007 |
| 8 | 13356127 |
| 9 | 13356127 |
| 10 | 6753069187 |
| 11 | 218617084627 |
| 12 | 35679817649197 |
| 13 | 92975416840027 |