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 | 2 |
| 3 | -1 |
| 4 | 3 |
| 5 | 10 |
| 6 | 2 |
| 7 | -8 |
| 8 | -26 |
| 9 | -52 |
| 10 | -85 |
| 11 | -39 |
| 12 | 19 |
| 13 | 87 |
| 14 | 170 |
| 15 | 79 |
| 16 | 186 |
| 17 | 64 |
| 18 | -68 |
| 19 | -214 |
| 20 | -367 |
| 21 | -198 |
| 22 | -385 |
| 23 | -182 |
| 24 | -396 |
| 25 | -628 |
| 26 | -876 |
| 27 | -1145 |
| 28 | -865 |
| 29 | -566 |
| 30 | -882 |
| 31 | -1216 |
| 32 | -1560 |
| 33 | -1916 |
| 34 | -2289 |
| 35 | -1895 |
| 36 | -1478 |
| 37 | -1915 |
| 38 | -1462 |
| 39 | -1928 |
| 40 | -2414 |
| 41 | -2911 |
| 42 | -2401 |