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 | 32767 |
| 2 | 1059392917 |
| 3 | 32599584662597 |
| 4 | 950437243856526737 |
| 5 | 26706726258154287563903 |