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 | 81 |
| 3 | 512 |
| 4 | 2401 |
| 5 | 17210368 |
| 6 | 34012224 |
| 7 | 612220032 |
| 8 | 20047612231936 |
| 9 | 3904305912313344 |
| 10 | 13744803133596058624 |
| 11 | 8007313507497959524352 |
| 12 | 2518170116818978404827136 |
| 13 | 81920000000000000 |