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 | -15 |
| 3 | -80 |
| 4 | -15 |
| 5 | -624 |
| 6 | 1200 |
| 7 | -2400 |
| 8 | -15 |
| 9 | -80 |
| 10 | 9360 |
| 11 | -14640 |
| 12 | 1200 |
| 13 | -28560 |
| 14 | 36000 |
| 15 | 49920 |
| 16 | -15 |
| 17 | -83520 |
| 18 | 1200 |
| 19 | -130320 |
| 20 | 9360 |
| 21 | 192000 |
| 22 | 219600 |
| 23 | -279840 |
| 24 | 1200 |
| 25 | -624 |
| 26 | 428400 |
| 27 | -80 |
| 28 | 36000 |
| 29 | -707280 |
| 30 | -748800 |
| 31 | -923520 |
| 32 | -15 |
| 33 | 1171200 |
| 34 | 1252800 |
| 35 | 1497600 |
| 36 | 1200 |
| 37 | -1874160 |