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) |
|---|---|
| 3 | 729 |
| 4 | 7056 |
| 5 | 70225 |
| 6 | 700569 |
| 7 | 7001316 |
| 8 | 70006689 |
| 9 | 700025764 |
| 10 | 7000166889 |
| 11 | 70000459776 |
| 12 | 700001628921 |
| 13 | 7000003645504 |
| 14 | 70000012293201 |
| 15 | 700000047060196 |
| 16 | 7000000057996009 |
| 17 | 70000000472817424 |
| 18 | 700000000779640729 |