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 | 2 |
| 2 | 16 |
| 3 | 53 |
| 4 | 150 |
| 5 | 395 |
| 6 | 774 |
| 7 | 1597 |
| 8 | 3036 |
| 9 | 5837 |
| 10 | 10080 |
| 11 | 18191 |