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 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 16 |
| 5 | 97 |
| 6 | 729 |
| 7 | 6433 |
| 8 | 65536 |
| 9 | 756680 |
| 10 | 9765625 |
| 11 | 139312339 |
| 12 | 2176782336 |
| 13 | 36972058910 |
| 14 | 678223072849 |
| 15 | 13363461010158 |
| 16 | 281474976710656 |
| 17 | 6311342330065435 |
| 18 | 150094635296999121 |
| 19 | 3773536025353076151 |
| 20 | 100000000000000000000 |
| 21 | 2785962590401641140642 |
| 22 | 81402749386839761113321 |