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 | 7 |
| 2 | 85 |
| 3 | 937 |
| 4 | 9745 |
| 5 | 98977 |
| 6 | 995905 |
| 7 | 9983617 |
| 8 | 99934465 |
| 9 | 999737857 |
| 10 | 9998951425 |
| 11 | 99995805697 |
| 12 | 999983222785 |
| 13 | 9999932891137 |
| 14 | 99999731564545 |
| 15 | 999998926258177 |
| 16 | 9999995705032705 |
| 17 | 99999982820130817 |
| 18 | 999999931280523265 |