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 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 4 |
| 7 | 0 |
| 8 | 8 |
| 9 | 17 |
| 10 | 14 |
| 11 | 0 |
| 12 | 245 |
| 13 | 0 |
| 14 | 40 |
| 15 | 499 |
| 16 | 542 |
| 17 | 0 |
| 18 | 2801 |
| 19 | 148 |
| 20 | 5316 |
| 21 | 6771 |
| 22 | 286 |
| 23 | 0 |
| 24 | 110809 |
| 25 | 18032 |
| 26 | 752 |
| 27 | 124327 |
| 28 | 155934 |
| 29 | 0 |
| 30 | 1310617 |
| 31 | 2972 |
| 32 | 1213164 |
| 33 | 1821955 |
| 34 | 5166 |
| 35 | 2697336 |
| 36 | 33280689 |
| 37 | 506376 |
| 38 | 1416024 |
| 39 | 32030851 |
| 40 | 106878198 |
| 41 | 62156 |
| 42 | 295708841 |
| 43 | 0 |