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) |
|---|---|
| 8 | 1 |
| 9 | 1 |
| 10 | 6 |
| 11 | 16 |
| 12 | 63 |
| 13 | 190 |
| 14 | 631 |
| 15 | 1923 |
| 16 | 5940 |
| 17 | 17706 |
| 18 | 52573 |
| 19 | 153442 |
| 20 | 444935 |
| 21 | 1277737 |
| 22 | 3648896 |
| 23 | 10357898 |
| 24 | 29278749 |
| 25 | 82435343 |
| 26 | 231393069 |
| 27 | 647760624 |
| 28 | 1809395471 |
| 29 | 5044728853 |
| 30 | 14043361916 |
| 31 | 39042161151 |
| 32 | 108423265447 |
| 33 | 300823420906 |
| 34 | 834004924385 |
| 35 | 2310725016923 |
| 36 | 6398803186192 |