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 | 72 |
| 3 | 704 |
| 4 | 7232 |
| 5 | 76288 |
| 6 | 815616 |
| 7 | 8777728 |
| 8 | 94769152 |
| 9 | 1024753664 |
| 10 | 11088986112 |
| 11 | 120037572608 |
| 12 | 1299617939456 |
| 13 | 14071782965248 |
| 14 | 152369922834432 |
| 15 | 1649898919297024 |
| 16 | 17865667030024192 |
| 17 | 193456332999753728 |