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 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 6 |
| 5 | 78 |
| 6 | 686999778 |
| 7 | 9876799878 |
| 8 | 89996788896 |
| 9 | 77779987999896 |
| 10 | 589598998999878 |
| 11 | 999699998689998991 |
| 12 | 9988894989978899995 |
| 13 | 95898999989999989765 |
| 14 | 999999966989999986978996 |