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 | 4 |
| 2 | 64 |
| 3 | 1728 |
| 4 | 65536 |
| 5 | 3200000 |
| 6 | 191102976 |
| 7 | 13492928512 |
| 8 | 1099511627776 |
| 9 | 101559956668416 |
| 10 | 10485760000000000 |
| 11 | 1196683881290399744 |
| 12 | 149587343098087735296 |
| 13 | 20325604337285010030592 |
| 14 | 2982856619293778479415296 |
| 15 | 470184984576000000000000000 |