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) |
|---|---|
| 8 | 1 |
| 9 | 0 |
| 10 | 0 |
| 11 | 8 |
| 12 | 0 |
| 13 | 8 |
| 14 | 28 |
| 15 | 8 |
| 16 | 64 |
| 17 | 64 |
| 18 | 84 |
| 19 | 232 |
| 20 | 182 |
| 21 | 400 |
| 22 | 596 |
| 23 | 680 |
| 24 | 1232 |
| 25 | 1520 |
| 26 | 2128 |
| 27 | 3144 |
| 28 | 3970 |
| 29 | 5504 |
| 30 | 7532 |
| 31 | 9584 |
| 32 | 12945 |
| 33 | 16920 |
| 34 | 21464 |
| 35 | 28288 |
| 36 | 35778 |
| 37 | 45264 |
| 38 | 57856 |
| 39 | 72024 |
| 40 | 90036 |
| 41 | 112456 |
| 42 | 138140 |
| 43 | 170600 |
| 44 | 208874 |
| 45 | 254192 |
| 46 | 309088 |
| 47 | 373584 |
| 48 | 449731 |
| 49 | 539408 |
| 50 | 645584 |
| 51 | 767776 |