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 | 3 |
| 2 | -1 |
| 3 | 14 |
| 4 | -8 |
| 5 | 1 |
| 6 | 92 |
| 7 | -68 |
| 8 | 15 |
| 9 | -1 |
| 10 | 968 |
| 11 | -816 |
| 12 | 230 |
| 13 | -26 |
| 14 | 1 |
| 15 | 12096 |
| 16 | -11248 |
| 17 | 3740 |
| 18 | -564 |
| 19 | 39 |
| 20 | -1 |
| 21 | 199296 |
| 22 | -198400 |
| 23 | 73544 |
| 24 | -13192 |
| 25 | 1222 |
| 26 | -56 |
| 27 | 1 |
| 28 | 3679488 |
| 29 | -3877632 |
| 30 | 1567824 |
| 31 | -320304 |
| 32 | 36160 |
| 33 | -2280 |
| 34 | 75 |
| 35 | -1 |
| 36 | 82607616 |
| 37 | -91008000 |