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 | -6 |
| 3 | -4 |
| 4 | 22 |
| 5 | 72 |
| 6 | 92 |
| 7 | -48 |
| 8 | -522 |
| 9 | -1294 |
| 10 | -1624 |
| 11 | 300 |
| 12 | 6948 |
| 13 | 19032 |
| 14 | 30192 |
| 15 | 20432 |
| 16 | -45578 |
| 17 | -202788 |
| 18 | -437178 |
| 19 | -599460 |
| 20 | -311112 |
| 21 | 1038624 |
| 22 | 4023532 |
| 23 | 8423280 |
| 24 | 11892004 |
| 25 | 8429270 |
| 26 | -12073032 |
| 27 | -60747944 |
| 28 | -139842736 |
| 29 | -223644552 |
| 30 | -232762256 |
| 31 | -15050944 |
| 32 | 636838518 |