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 | 272 |
| 3 | 90176 |
| 4 | 311853312 |
| 5 | 11203604497408 |
| 6 | 4161957566985310208 |
| 7 | 15954943354032349049274368 |
| 8 | 630665326543010382995142219988992 |
| 9 | 256955886436135671144699761794930161483776 |