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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 8 |
| 6 | 96 |
| 7 | 192 |
| 8 | 1152 |
| 9 | 384 |
| 10 | 1536 |
| 11 | 1536 |
| 12 | 18432 |
| 13 | 18432 |
| 14 | 73728 |
| 15 | 147456 |
| 16 | 884736 |
| 17 | 884736 |
| 18 | 10616832 |
| 19 | 10616832 |
| 20 | 212336640 |
| 21 | 212336640 |
| 22 | 2548039680 |
| 23 | 849346560 |
| 24 | 152882380800 |
| 25 | 30576476160 |
| 26 | 366917713920 |
| 27 | 40768634880 |
| 28 | 163074539520 |
| 29 | 163074539520 |
| 30 | 1956894474240 |