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 | 2 |
| 3 | 8 |
| 4 | 64 |
| 5 | 1023 |
| 6 | 32596 |
| 7 | 2062592 |
| 8 | 257798069 |
| 9 | 63135260853 |
| 10 | 29939766625614 |
| 11 | 27055039857514327 |