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) |
|---|---|
| 7 | 1 |
| 8 | 6 |
| 9 | 40 |
| 10 | 184 |
| 11 | 688 |
| 12 | 2178 |
| 13 | 6116 |
| 14 | 15493 |
| 15 | 36203 |
| 16 | 78954 |
| 17 | 162537 |
| 18 | 318261 |
| 19 | 596881 |
| 20 | 1077561 |
| 21 | 1881218 |
| 22 | 3187222 |
| 23 | 5257026 |
| 24 | 8463247 |
| 25 | 13329249 |
| 26 | 20576809 |
| 27 | 31189362 |
| 28 | 46486870 |
| 29 | 68222601 |
| 30 | 98696480 |
| 31 | 140898502 |
| 32 | 198674609 |
| 33 | 276933307 |
| 34 | 381882149 |