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 | 1 |
| 4 | 3 |
| 5 | 12 |
| 6 | 46 |
| 7 | 163 |
| 8 | 405 |
| 9 | 770 |
| 10 | 1252 |
| 11 | 1921 |
| 12 | 2816 |
| 13 | 3977 |
| 14 | 5464 |
| 15 | 7313 |