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) |
|---|---|
| 6 | 1 |
| 7 | 0 |
| 8 | 1 |
| 9 | 1 |
| 10 | 3 |
| 11 | 2 |
| 12 | 12 |
| 13 | 16 |
| 14 | 59 |
| 15 | 133 |
| 16 | 445 |
| 17 | 1248 |
| 18 | 4162 |
| 19 | 13014 |
| 20 | 43474 |
| 21 | 143304 |
| 22 | 484444 |
| 23 | 1639388 |
| 24 | 5617205 |
| 25 | 19332596 |
| 26 | 67048051 |
| 27 | 233691112 |
| 28 | 819121608 |
| 29 | 2884443024 |
| 30 | 10204104900 |
| 31 | 36247138920 |
| 32 | 129264732757 |
| 33 | 462661038926 |
| 34 | 1661637913984 |