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 | 16384 |
| 2 | 172038 |
| 3 | 281649154 |
| 4 | 9770273902 |
| 5 | 5844655062086 |
| 6 | 390885525849628 |
| 7 | 136599937752568134 |