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 | 2 |
| 1 | 8 |
| 2 | 64 |
| 3 | 2048 |
| 4 | 1048576 |
| 5 | 137438953472 |
| 6 | 1180591620717411303424 |
| 7 | 43556142965880123323311949751266331066368 |