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 | 1 |
| 3 | 2 |
| 4 | 5 |
| 5 | 12 |
| 6 | 32 |
| 7 | 95 |
| 8 | 301 |
| 9 | 1001 |
| 10 | 3495 |
| 11 | 12708 |
| 12 | 47932 |
| 13 | 186581 |
| 14 | 747619 |
| 15 | 3073207 |