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 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 2 |
| 6 | 4 |
| 7 | 4 |
| 8 | 12 |
| 9 | 24 |
| 10 | 48 |
| 11 | 48 |
| 12 | 144 |
| 13 | 144 |
| 14 | 288 |
| 15 | 576 |
| 16 | 2304 |
| 17 | 2304 |
| 18 | 6912 |
| 19 | 6912 |
| 20 | 20736 |
| 21 | 41472 |
| 22 | 82944 |
| 23 | 82944 |
| 24 | 331776 |
| 25 | 663552 |
| 26 | 1327104 |
| 27 | 3981312 |
| 28 | 11943936 |
| 29 | 11943936 |
| 30 | 35831808 |
| 31 | 35831808 |
| 32 | 179159040 |
| 33 | 358318080 |
| 34 | 716636160 |
| 35 | 1433272320 |
| 36 | 5733089280 |
| 37 | 5733089280 |
| 38 | 11466178560 |