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 | 1 |
| 3 | 0 |
| 4 | 17 |
| 5 | 118 |
| 6 | 81 |
| 7 | 129 |
| 8 | 417 |
| 9 | 0 |
| 10 | 49 |
| 11 | 124 |
| 12 | 945 |
| 13 | 1498 |
| 14 | 177 |
| 15 | 1782 |
| 16 | 1857 |
| 17 | 1958 |
| 18 | 729 |
| 19 | 3917 |
| 20 | 401 |
| 21 | 7398 |
| 22 | 8721 |
| 23 | 6466 |
| 24 | 4833 |
| 25 | 68 |
| 26 | 14049 |
| 27 | 0 |
| 28 | 3889 |
| 29 | 9718 |
| 30 | 26649 |
| 31 | 24648 |
| 32 | 16001 |
| 33 | 3294 |
| 34 | 6537 |
| 35 | 32457 |
| 36 | 41553 |
| 37 | 34857 |
| 38 | 33601 |
| 39 | 26703 |
| 40 | 32801 |
| 41 | 9310 |
| 42 | 62721 |
| 43 | 76070 |
| 44 | 50417 |
| 45 | 12393 |