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) |
|---|---|
| 0 | 1 |
| 1 | -12 |
| 2 | 42 |
| 3 | 32 |
| 4 | -441 |
| 5 | 324 |
| 6 | 1486 |
| 7 | 552 |
| 8 | -5925 |
| 9 | -14960 |
| 10 | 26490 |
| 11 | 46488 |
| 12 | 23436 |
| 13 | -86940 |
| 14 | -454572 |
| 15 | -84008 |
| 16 | 650589 |
| 17 | 2512344 |
| 18 | 2002056 |
| 19 | -5360256 |
| 20 | -9309792 |
| 21 | -16236104 |
| 22 | 3738294 |
| 23 | 49969488 |
| 24 | 106062099 |
| 25 | 90950460 |
| 26 | -166391628 |
| 27 | -472579032 |
| 28 | -780853359 |
| 29 | -269428512 |
| 30 | 1218718846 |
| 31 | 4153700664 |
| 32 | 5179581558 |