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 | 3 |
| 5 | 1 |
| 6 | 0 |
| 7 | 18 |
| 8 | 6 |
| 9 | 1 |
| 10 | 0 |
| 11 | 117 |
| 12 | 45 |
| 13 | 9 |
| 14 | 1 |
| 15 | 0 |
| 16 | 765 |
| 17 | 342 |
| 18 | 81 |
| 19 | 12 |
| 20 | 1 |
| 21 | 0 |
| 22 | 5004 |
| 23 | 2556 |
| 24 | 702 |
| 25 | 126 |
| 26 | 15 |
| 27 | 1 |
| 28 | 0 |
| 29 | 32733 |
| 30 | 18810 |
| 31 | 5859 |
| 32 | 1224 |
| 33 | 180 |
| 34 | 18 |
| 35 | 1 |
| 36 | 0 |
| 37 | 214119 |
| 38 | 136719 |
| 39 | 47493 |
| 40 | 11241 |
| 41 | 1935 |
| 42 | 243 |
| 43 | 21 |
| 44 | 1 |