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 | 16 |
| 2 | 94 |
| 3 | -3680 |
| 4 | -104564 |
| 5 | 711616 |
| 6 | 96082696 |
| 7 | 845632384 |
| 8 | -95427659120 |
| 9 | -2622782115584 |
| 10 | 97169013147616 |
| 11 | 5803611237607936 |
| 12 | -80297401627324736 |
| 13 | -12566978671947023360 |
| 14 | -31965330924006479744 |
| 15 | 27990462333191745304576 |
| 16 | 525523151476403670651136 |