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 | 4 |
| 3 | 16 |
| 4 | 64 |
| 5 | 256 |
| 6 | 16384 |
| 7 | 65536 |
| 8 | 262144 |
| 9 | 16777216 |
| 10 | 268435456 |
| 11 | 4294967296 |
| 12 | 17179869184 |
| 13 | 68719476736 |
| 14 | 4722366482869645213696 |
| 15 | 75557863725914323419136 |
| 16 | 77371252455336267181195264 |