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 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 16 |
| 6 | 136 |
| 7 | 456 |
| 8 | 1024 |
| 9 | 1804 |
| 10 | 2784 |
| 11 | 3964 |
| 12 | 5344 |
| 13 | 6924 |
| 14 | 8704 |
| 15 | 10684 |
| 16 | 12864 |
| 17 | 15244 |
| 18 | 17824 |
| 19 | 20604 |
| 20 | 23584 |
| 21 | 26764 |
| 22 | 30144 |
| 23 | 33724 |
| 24 | 37504 |
| 25 | 41484 |
| 26 | 45664 |
| 27 | 50044 |
| 28 | 54624 |
| 29 | 59404 |
| 30 | 64384 |
| 31 | 69564 |
| 32 | 74944 |
| 33 | 80524 |
| 34 | 86304 |
| 35 | 92284 |
| 36 | 98464 |
| 37 | 104844 |
| 38 | 111424 |
| 39 | 118204 |
| 40 | 125184 |