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 | 4 |
| 2 | 8 |
| 3 | 32 |
| 4 | 256 |
| 5 | 2480 |
| 6 | 24704 |
| 7 | 246928 |
| 8 | 2469152 |
| 9 | 24691376 |
| 10 | 246913600 |
| 11 | 2469135824 |
| 12 | 24691358048 |
| 13 | 246913580272 |
| 14 | 2469135802496 |
| 15 | 24691358024720 |
| 16 | 246913580246944 |