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 | -1 |
| 2 | -4 |
| 3 | -8 |
| 4 | 1 |
| 5 | 24 |
| 6 | 78 |
| 7 | 111 |
| 8 | 75 |
| 9 | -249 |
| 10 | -876 |
| 11 | -1847 |
| 12 | -2251 |
| 13 | -871 |
| 14 | 5170 |
| 15 | 17052 |
| 16 | 34742 |
| 17 | 47176 |
| 18 | 34576 |
| 19 | -44016 |
| 20 | -224561 |
| 21 | -530104 |
| 22 | -875149 |
| 23 | -1030871 |
| 24 | -475480 |
| 25 | 1488315 |
| 26 | 5658668 |
| 27 | 12109163 |
| 28 | 19411024 |
| 29 | 22693048 |
| 30 | 12926630 |
| 31 | -24000623 |
| 32 | -102605376 |
| 33 | -230257606 |
| 34 | -386964449 |