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 | 4 |
| 3 | -3 |
| 4 | 16 |
| 5 | -18 |
| 6 | 3 |
| 7 | 64 |
| 8 | -96 |
| 9 | 16 |
| 10 | 18 |
| 11 | -1 |
| 12 | 256 |
| 13 | -480 |
| 14 | 80 |
| 15 | 180 |
| 16 | -30 |
| 17 | -5 |
| 18 | 1024 |
| 19 | -2304 |
| 20 | 384 |
| 21 | 1296 |
| 22 | -288 |
| 23 | -108 |
| 24 | -24 |
| 25 | 9 |
| 26 | 12 |
| 27 | 4096 |
| 28 | -10752 |
| 29 | 1792 |
| 30 | 8064 |
| 31 | -2016 |
| 32 | -1512 |
| 33 | 112 |
| 34 | 252 |
| 35 | -112 |
| 36 | 84 |
| 37 | -7 |