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 | 24 |
| 2 | 448 |
| 3 | 9216 |
| 4 | 192512 |
| 5 | 4030464 |
| 6 | 84410368 |
| 7 | 1767899136 |
| 8 | 37027315712 |
| 9 | 775510032384 |
| 10 | 16242492571648 |
| 11 | 340187179646976 |
| 12 | 7124972786941952 |
| 13 | 149227367389200384 |
| 14 | 3125458558976524288 |
| 15 | 65460453902527758336 |
| 16 | 1371021545886168645632 |
| 17 | 28715048051506270961664 |