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) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 1 |
| 5 | 5 |
| 6 | 0 |
| 7 | 1 |
| 8 | 19 |
| 9 | 61 |
| 10 | 0 |
| 11 | 1 |
| 12 | 42 |
| 13 | 498 |
| 14 | 1385 |
| 15 | 0 |
| 16 | 1 |
| 17 | 74 |
| 18 | 1932 |
| 19 | 19238 |
| 20 | 50521 |
| 21 | 0 |
| 22 | 1 |
| 23 | 115 |
| 24 | 5290 |
| 25 | 114830 |
| 26 | 1057475 |
| 27 | 2702765 |
| 28 | 0 |
| 29 | 1 |
| 30 | 165 |
| 31 | 11805 |
| 32 | 449539 |
| 33 | 8949633 |
| 34 | 79160457 |
| 35 | 199360981 |
| 36 | 0 |
| 37 | 1 |
| 38 | 224 |
| 39 | 23016 |
| 40 | 1360198 |
| 41 | 47306246 |
| 42 | 899141244 |
| 43 | 7768928932 |
| 44 | 19391512145 |