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 | 1 |
| 1 | 8 |
| 2 | 56 |
| 3 | 384 |
| 4 | 2536 |
| 5 | 16512 |
| 6 | 105664 |
| 7 | 669696 |
| 8 | 4201832 |
| 9 | 26183808 |
| 10 | 162073408 |
| 11 | 998129664 |
| 12 | 6117389760 |
| 13 | 37346353152 |
| 14 | 227164816896 |
| 15 | 1377490599936 |
| 16 | 8328848160360 |