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 | -168 |
| 1 | -560 |
| 2 | -101124 |
| 3 | -3288624 |
| 4 | -180132168 |
| 5 | -7998247028 |
| 6 | -384048485640 |
| 7 | -17892957477264 |
| 8 | -843263161727364 |
| 9 | -39567408316416848 |
| 10 | -1859687400468342888 |
| 11 | -87350263553726629620 |
| 12 | -4103880417768964672104 |
| 13 | -192790045902230868971504 |
| 14 | -9057117701582885083841028 |