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 | 8 |
| 2 | -274 |
| 3 | -7600 |
| 4 | 217036 |
| 5 | 12011488 |
| 6 | -270698936 |
| 7 | -26524889152 |
| 8 | 428274569360 |
| 9 | 75149496821888 |
| 10 | -701615265418016 |
| 11 | -259618221381325568 |
| 12 | 531659785773578944 |
| 13 | 1057264784208845135360 |
| 14 | 6122005174981655202944 |
| 15 | -4954000917476401938899968 |
| 16 | -70670573576968207390125824 |