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 | 4 |
| 3 | 16 |
| 4 | 64 |
| 5 | 36 |
| 6 | 1024 |
| 7 | 4096 |
| 8 | 144 |
| 9 | 65536 |
| 10 | 262144 |
| 11 | 576 |
| 12 | 4194304 |
| 13 | 1296 |
| 14 | 900 |
| 15 | 268435456 |
| 16 | 1073741824 |
| 17 | 9216 |
| 18 | 5184 |
| 19 | 68719476736 |
| 20 | 36864 |
| 21 | 1099511627776 |
| 22 | 4398046511104 |
| 23 | 3600 |
| 24 | 70368744177664 |
| 25 | 46656 |
| 26 | 589824 |
| 27 | 4503599627370496 |
| 28 | 82944 |