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 | 730 |
| 4 | 5930 |
| 5 | 47690 |
| 6 | 384090 |
| 7 | 3075610 |
| 8 | 24663210 |
| 9 | 197117210 |
| 10 | 1576845050 |
| 11 | 12589411530 |
| 12 | 100567197770 |
| 13 | 802350892730 |
| 14 | 6403639865530 |