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 | 16842752 |
| 2 | 33685504 |
| 3 | 67371008 |
| 4 | 134742016 |
| 5 | 269484032 |
| 6 | 538968064 |
| 7 | 1077936128 |
| 8 | 2155872256 |
| 9 | 4294967296 |