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 | 1 |
| 6 | 0 |
| 7 | 1 |
| 8 | 4 |
| 9 | 3 |
| 10 | 0 |
| 11 | 1 |
| 12 | 14 |
| 13 | 31 |
| 14 | 18 |
| 15 | 0 |
| 16 | 1 |
| 17 | 51 |
| 18 | 255 |
| 19 | 385 |
| 20 | 180 |
| 21 | 0 |
| 22 | 1 |
| 23 | 202 |
| 24 | 2066 |
| 25 | 6110 |
| 26 | 6945 |
| 27 | 2700 |
| 28 | 0 |
| 29 | 1 |
| 30 | 876 |
| 31 | 17549 |
| 32 | 90839 |
| 33 | 188510 |
| 34 | 171045 |
| 35 | 56700 |
| 36 | 0 |
| 37 | 1 |
| 38 | 4139 |
| 39 | 159615 |
| 40 | 1364307 |
| 41 | 4603620 |
| 42 | 7314650 |
| 43 | 5507460 |
| 44 | 1587600 |