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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 8 |
| 3 | 127 |
| 4 | 16674 |
| 5 | 16388502 |
| 6 | 59893592245 |
| 7 | 349607878149545 |
| 8 | 2313452894091782101 |
| 9 | 15234448027502727073180 |
| 10 | 95092594038536680078007672 |
| 11 | 553092980828190394446335839530 |