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 | 112 |
| 3 | 1568 |
| 4 | 21952 |
| 5 | 307328 |
| 6 | 4302592 |
| 7 | 60236288 |
| 8 | 843308032 |
| 9 | 11806312448 |
| 10 | 165288374272 |
| 11 | 2314037239808 |
| 12 | 32396521357312 |
| 13 | 453551299002368 |
| 14 | 6349718186033152 |
| 15 | 88896054604464128 |
| 16 | 1244544764462497792 |