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 | 1764 |
| 3 | 60516 |
| 4 | 82369 |
| 5 | 529984 |
| 6 | 2056356 |
| 7 | 2798929 |
| 8 | 3534400 |
| 9 | 18181696 |
| 10 | 38900169 |
| 11 | 96020401 |
| 12 | 97121025 |
| 13 | 335988900 |
| 14 | 455907904 |
| 15 | 457318225 |
| 16 | 617820736 |
| 17 | 1334513961 |
| 18 | 1599200100 |
| 19 | 2176689025 |
| 20 | 3279852900 |
| 21 | 4464244225 |
| 22 | 8586616896 |
| 23 | 15688815025 |
| 24 | 24514164900 |
| 25 | 33366502225 |