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 | -1 |
| 3 | -14 |
| 4 | -3 |
| 5 | 1 |
| 6 | 115 |
| 7 | 79 |
| 8 | 6 |
| 9 | -1 |
| 10 | -800 |
| 11 | -895 |
| 12 | -255 |
| 13 | -10 |
| 14 | 1 |
| 15 | 5125 |
| 16 | 7875 |
| 17 | 3850 |
| 18 | 625 |
| 19 | 15 |
| 20 | -1 |
| 21 | -31250 |
| 22 | -60875 |
| 23 | -42075 |
| 24 | -12180 |
| 25 | -1295 |
| 26 | -21 |
| 27 | 1 |
| 28 | 184375 |
| 29 | 434375 |
| 30 | 387750 |
| 31 | 162375 |
| 32 | 31710 |
| 33 | 2394 |
| 34 | 28 |
| 35 | -1 |
| 36 | -1062500 |
| 37 | -2934375 |