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 | 65536 |
| 1 | 429981696 |
| 2 | 25600000000 |
| 3 | 377801998336 |
| 4 | 2821109907456 |
| 5 | 14048223625216 |
| 6 | 53459728531456 |
| 7 | 167961600000000 |
| 8 | 457163239653376 |
| 9 | 1113034787454976 |
| 10 | 2478758911082496 |
| 11 | 5132188731375616 |
| 12 | 10000000000000000 |
| 13 | 18509302102818816 |
| 14 | 32784148919812096 |
| 15 | 55895067029733376 |