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 | 0 |
| 1 | 1 |
| 2 | 4160 |
| 3 | 798255 |
| 4 | 33562624 |
| 5 | 610390625 |
| 6 | 6530486976 |
| 7 | 48444916975 |
| 8 | 274878955520 |
| 9 | 1270935305649 |
| 10 | 5000005000000 |
| 11 | 17261365815551 |
| 12 | 53496620605440 |
| 13 | 151437584670385 |
| 14 | 396857439333824 |
| 15 | 973097619609375 |
| 16 | 2251799947902976 |