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 | 2 |
| 2 | 4 |
| 3 | 24 |
| 4 | 64 |
| 5 | 512 |
| 6 | 1728 |
| 7 | 13312 |
| 8 | 32768 |
| 9 | 373248 |
| 10 | 1310720 |
| 11 | 10903552 |
| 12 | 35831808 |
| 13 | 287965184 |
| 14 | 1240465408 |
| 15 | 10319560704 |
| 16 | 26843545600 |
| 17 | 331895275520 |
| 18 | 1253826625536 |
| 19 | 10690521726976 |
| 20 | 34359738368000 |
| 21 | 347727917481984 |
| 22 | 1307761908383744 |
| 23 | 11445236333019136 |
| 24 | 30814043149172736 |