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 | 8 |
| 3 | 15 |
| 4 | 64 |
| 5 | 7069 |
| 6 | 229826 |
| 7 | 62906548 |
| 8 | 104509874538 |
| 9 | 209233407362 |
| 10 | 474536678820 |
| 11 | 2653613575299 |
| 12 | 14802269029898 |