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 | 5 |
| 2 | 65 |
| 3 | 785 |
| 4 | 8705 |
| 5 | 92225 |
| 6 | 953345 |
| 7 | 9720065 |
| 8 | 98320385 |
| 9 | 989922305 |
| 10 | 9939533825 |
| 11 | 99637202945 |
| 12 | 997823217665 |
| 13 | 9986939305985 |
| 14 | 99921635835905 |
| 15 | 999529815015425 |
| 16 | 9997178890092545 |
| 17 | 99983073340555265 |
| 18 | 999898440043331585 |