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 | 1 |
| 4 | 28 |
| 5 | 4 |
| 6 | 1 |
| 7 | 280 |
| 8 | 44 |
| 9 | 4 |
| 10 | 1 |
| 11 | 3640 |
| 12 | 392 |
| 13 | 44 |
| 14 | 4 |
| 15 | 1 |
| 16 | 58240 |
| 17 | 5544 |
| 18 | 456 |
| 19 | 44 |
| 20 | 4 |
| 21 | 1 |
| 22 | 1106560 |
| 23 | 80640 |
| 24 | 5992 |
| 25 | 456 |
| 26 | 44 |
| 27 | 4 |
| 28 | 1 |
| 29 | 24344320 |
| 30 | 1519840 |
| 31 | 88256 |
| 32 | 6248 |
| 33 | 456 |
| 34 | 44 |
| 35 | 4 |
| 36 | 1 |
| 37 | 608608000 |
| 38 | 31420480 |
| 39 | 1631392 |
| 40 | 90048 |
| 41 | 6248 |
| 42 | 456 |
| 43 | 44 |
| 44 | 4 |
| 45 | 1 |
| 46 | 17041024000 |
| 47 | 766525760 |
| 48 | 33293120 |