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) |
|---|---|
| 1 | 8 |
| 2 | 77 |
| 3 | 5711 |
| 4 | 9797 |
| 5 | 997997 |
| 6 | 8053139 |
| 7 | 60755907 |
| 8 | 99979997 |
| 9 | 9999799997 |
| 10 | 71515443427 |
| 11 | 93445113269 |
| 12 | 999997999997 |
| 13 | 26369408771424 |
| 14 | 96872443448748 |
| 15 | 99650905131203 |
| 16 | 99999979999997 |
| 17 | 751273714618266 |
| 18 | 3368237924952647 |
| 19 | 3493498117381256 |
| 20 | 9999999799999997 |
| 21 | 35399255736521405 |
| 22 | 999999997999999997 |