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 | 10 |
| 2 | 90 |
| 3 | 882 |
| 4 | 8474 |
| 5 | 82650 |
| 6 | 803894 |
| 7 | 7858034 |
| 8 | 76833498 |
| 9 | 752970088 |
| 10 | 7385132830 |
| 11 | 72529933448 |
| 12 | 712899726610 |
| 13 | 7013548687126 |
| 14 | 69048242750358 |
| 15 | 680252491600274 |
| 16 | 6705715693296522 |
| 17 | 66139925760268608 |
| 18 | 652678937193274320 |