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 | 22 |
| 2 | -1438 |
| 3 | -116204 |
| 4 | 5735020 |
| 5 | 1019546792 |
| 6 | -32683512776 |
| 7 | -12476450886416 |
| 8 | 165242061387152 |
| 9 | 195473234180049760 |
| 10 | 1442053974086139424 |
| 11 | -3725270373510661319872 |
| 12 | -112443853337363708739392 |
| 13 | 83445871121227891089261184 |
| 14 | 4645331284154383230526194560 |