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 | 320 |
| 1 | 12320 |
| 2 | 396032 |
| 3 | 24035 |
| 4 | 4222400 |
| 5 | 2360960 |
| 6 | 18446720 |
| 7 | 511313 |
| 8 | 54017600 |
| 9 | 21079520 |
| 10 | 125864960 |
| 11 | 5660830 |
| 12 | 252900032 |
| 13 | 86027840 |
| 14 | 458015360 |
| 15 | 18690490 |
| 16 | 768084800 |
| 17 | 242991008 |
| 18 | 1213963520 |
| 19 | 23415035 |
| 20 | 1830488000 |
| 21 | 553679360 |
| 22 | 2656476032 |
| 23 | 49394345 |
| 24 | 3734726720 |
| 25 | 1095728480 |
| 26 | 5112020480 |