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 | 2 |
| 1 | -4 |
| 2 | -5 |
| 3 | 27 |
| 4 | -8 |
| 5 | -128 |
| 6 | 200 |
| 7 | 405 |
| 8 | -1525 |
| 9 | -172 |
| 10 | 8002 |
| 11 | -9072 |
| 12 | -29585 |
| 13 | 83119 |
| 14 | 47732 |
| 15 | -483840 |
| 16 | 357884 |
| 17 | 2025929 |
| 18 | -4346921 |
| 19 | -4941000 |
| 20 | 28343650 |
| 21 | -10011500 |
| 22 | -132300829 |
| 23 | 215642979 |
| 24 | 407506016 |
| 25 | -1608010240 |
| 26 | -81576032 |
| 27 | 8313490269 |
| 28 | -9921126365 |
| 29 | -30119890772 |
| 30 | 88120588898 |
| 31 | 44244248328 |
| 32 | -505045957225 |