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 | 2 |
| 2 | 16 |
| 3 | 512 |
| 4 | 37976 |
| 5 | 7767740 |
| 6 | 3848548036 |
| 7 | 5404382625660 |
| 8 | 19742364192283882 |
| 9 | 203905576411742503606 |
| 10 | 5585800755853929115668714 |