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) |
|---|---|
| 11 | 1 |
| 12 | 2 |
| 13 | 29 |
| 14 | 233 |
| 15 | 2297 |
| 16 | 21192 |
| 17 | 195862 |