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 | -2 |
| 2 | -7 |
| 3 | -2 |
| 4 | 1 |
| 5 | 82 |
| 6 | 34 |
| 7 | 464 |
| 8 | 198 |
| 9 | -82 |
| 10 | -1 |
| 11 | 0 |
| 12 | -39208 |
| 13 | -16238 |
| 14 | 6725 |
| 15 | -551614 |
| 16 | -228486 |
| 17 | 95120 |
| 18 | 0 |
| 19 | 82 |
| 20 | 6726 |
| 21 | 0 |
| 22 | 263673800 |
| 23 | 109216786 |
| 24 | -45239073 |
| 25 | 0 |
| 26 | 8957108166 |
| 27 | 3706940654 |
| 28 | -1536796802 |
| 29 | -551614 |
| 30 | -1 |
| 31 | -109216786 |
| 32 | 0 |
| 33 | -18738638 |
| 34 | -6726 |
| 35 | -24954506565518 |
| 36 | -10336495061766 |