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 | 15625 |
| 4 | 5764801 |
| 5 | 3486784401 |
| 6 | 3138428376721 |
| 7 | 3937376385699289 |
| 8 | 6568408355712890625 |
| 9 | 14063084452067724991009 |
| 10 | 37589973457545958193355601 |
| 11 | 122694327386105632949003612841 |
| 12 | 480250763996501976790165756943041 |
| 13 | 2220446049250313080847263336181640625 |