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 | 1 |
| 2 | 2 |
| 3 | 14 |
| 4 | 130 |
| 5 | 1615 |
| 6 | 23140 |
| 7 | 383820 |
| 8 | 7006916 |
| 9 | 140537609 |
| 10 | 3035127766 |