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 | 0 |
| 1 | 49 |
| 2 | 5929 |
| 3 | 603729 |
| 4 | 60481729 |
| 5 | 6049261729 |
| 6 | 604937061729 |
| 7 | 60493815061729 |
| 8 | 6049382595061729 |
| 9 | 604938270395061729 |
| 10 | 60493827148395061729 |
| 11 | 6049382715928395061729 |
| 12 | 604938271603728395061729 |
| 13 | 60493827160481728395061729 |
| 14 | 6049382716049261728395061729 |
| 15 | 604938271604937061728395061729 |