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 | 6 |
| 2 | 76 |
| 3 | 876 |
| 4 | 9376 |
| 5 | 96876 |
| 6 | 984376 |
| 7 | 9921876 |
| 8 | 99609376 |
| 9 | 998046876 |
| 10 | 9990234376 |
| 11 | 99951171876 |
| 12 | 999755859376 |
| 13 | 9998779296876 |
| 14 | 99993896484376 |
| 15 | 999969482421876 |
| 16 | 9999847412109376 |
| 17 | 99999237060546876 |
| 18 | 999996185302734376 |