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) |
|---|---|
| 2 | 1 |
| 3 | 2 |
| 4 | 0 |
| 5 | 4 |
| 6 | 4 |
| 7 | 1 |
| 8 | 8 |
| 9 | 24 |
| 10 | 12 |
| 11 | 0 |
| 12 | 16 |
| 13 | 104 |
| 14 | 120 |
| 15 | 24 |
| 16 | 1 |
| 17 | 32 |
| 18 | 392 |
| 19 | 896 |
| 20 | 480 |
| 21 | 54 |
| 22 | 0 |
| 23 | 64 |
| 24 | 1368 |
| 25 | 5544 |
| 26 | 5984 |
| 27 | 1764 |
| 28 | 108 |
| 29 | 1 |
| 30 | 128 |
| 31 | 4552 |
| 32 | 30384 |
| 33 | 57640 |
| 34 | 34520 |
| 35 | 6048 |
| 36 | 224 |
| 37 | 0 |
| 38 | 256 |
| 39 | 14680 |
| 40 | 153400 |
| 41 | 470504 |
| 42 | 495320 |
| 43 | 180416 |
| 44 | 19936 |
| 45 | 448 |
| 46 | 1 |