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 | 9 |
| 3 | 36 |
| 4 | 2401 |
| 5 | 21609 |
| 6 | 4112784 |
| 7 | 65804544 |
| 8 | 25344958401 |
| 9 | 633623960025 |
| 10 | 413815190632704 |
| 11 | 14897346862777344 |
| 12 | 14823103693846716801 |
| 13 | 726332080998489123249 |
| 14 | 1025131531800200888254464 |
| 15 | 65608418035212856848285696 |