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 | 32 |
| 3 | 2048 |
| 4 | 8192 |
| 5 | 2199023255552 |
| 6 | 144115188075855872 |
| 7 | 576460752303423488 |
| 8 | 2305843009213693952 |