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 | 12 |
| 3 | 144 |
| 4 | 1728 |
| 5 | 248832 |
| 6 | 2985984 |
| 7 | 429981696 |
| 8 | 61917364224 |
| 9 | 1283918464548864 |
| 10 | 3833759992447475122176 |
| 11 | 11447545997288281555215581184 |