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) |
|---|---|
| 1 | 1 |
| 2 | 16 |
| 3 | 416 |
| 4 | 14976 |
| 5 | 688896 |
| 6 | 38578176 |
| 7 | 2546159616 |
| 8 | 193508130816 |
| 9 | 16641699250176 |
| 10 | 1597603128016896 |
| 11 | 169345931569790976 |
| 12 | 19644128062095753216 |
| 13 | 2475160135824064905216 |
| 14 | 336621778472072827109376 |
| 15 | 49146779656922632757968896 |
| 16 | 7666897626479930710243147776 |