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 | 72 |
| 3 | 1 |
| 4 | 4800 |
| 5 | 1 |
| 6 | 15876 |
| 7 | 1 |
| 8 | 3456000 |
| 9 | 1 |
| 10 | 242 |
| 11 | 1 |
| 12 | 300500928 |
| 13 | 1 |
| 14 | 1 |
| 15 | 1 |
| 16 | 2130739200 |
| 17 | 1 |
| 18 | 1052676 |
| 19 | 1 |
| 20 | 119790000 |
| 21 | 1 |
| 22 | 1058 |
| 23 | 1 |
| 24 | 531598161669120000 |
| 25 | 1 |
| 26 | 1 |
| 27 | 1 |
| 28 | 1682 |
| 29 | 1 |
| 30 | 1922 |
| 31 | 1 |
| 32 | 20864198246400 |
| 33 | 1 |
| 34 | 1 |
| 35 | 1 |
| 36 | 1159208596538496 |
| 37 | 1 |
| 38 | 1 |
| 39 | 1 |
| 40 | 265804426800000000 |
| 41 | 1 |
| 42 | 17757796 |
| 43 | 1 |