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 | 16777216 |
| 1 | 11019960576 |
| 2 | 377801998336 |
| 3 | 4347792138496 |
| 4 | 28179280429056 |
| 5 | 128063081718016 |
| 6 | 457163239653376 |
| 7 | 1370114370683136 |
| 8 | 3596345248055296 |
| 9 | 8507630225817856 |
| 10 | 18509302102818816 |
| 11 | 37588592026706176 |
| 12 | 72057594037927936 |
| 13 | 131532383853732096 |
| 14 | 230193853492166656 |