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 | 2 |
| 2 | 16 |
| 3 | 466 |
| 4 | 51512 |
| 5 | 21425198 |
| 6 | 32840182186 |
| 7 | 188637643581570 |
| 8 | 4048457379398984078 |
| 9 | 323937479341259299455434 |
| 10 | 96758393657902322435446080112 |