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 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 27 |
| 5 | 195 |
| 6 | 527 |
| 7 | 1487 |
| 8 | 2711 |
| 9 | 5648 |
| 10 | 8694 |
| 11 | 15163 |
| 12 | 21398 |
| 13 | 33514 |
| 14 | 44411 |
| 15 | 64990 |
| 16 | 82431 |
| 17 | 114337 |
| 18 | 140958 |
| 19 | 187742 |
| 20 | 225716 |
| 21 | 292010 |
| 22 | 344238 |
| 23 | 434025 |
| 24 | 504464 |
| 25 | 622802 |
| 26 | 714278 |
| 27 | 867664 |
| 28 | 984013 |
| 29 | 1177505 |
| 30 | 1324222 |
| 31 | 1564296 |
| 32 | 1744637 |
| 33 | 2039877 |
| 34 | 2258715 |
| 35 | 2615027 |
| 36 | 2879412 |
| 37 | 3304797 |