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) |
|---|---|
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 3 |
| 7 | 7 |
| 8 | 16 |
| 9 | 27 |
| 10 | 45 |
| 11 | 66 |
| 12 | 96 |
| 13 | 130 |
| 14 | 175 |
| 15 | 225 |
| 16 | 288 |
| 17 | 357 |
| 18 | 441 |
| 19 | 532 |
| 20 | 640 |
| 21 | 756 |
| 22 | 891 |
| 23 | 1035 |
| 24 | 1200 |
| 25 | 1375 |
| 26 | 1573 |
| 27 | 1782 |
| 28 | 2016 |
| 29 | 2262 |
| 30 | 2535 |
| 31 | 2821 |
| 32 | 3136 |
| 33 | 3465 |
| 34 | 3825 |
| 35 | 4200 |
| 36 | 4608 |
| 37 | 5032 |
| 38 | 5491 |
| 39 | 5967 |
| 40 | 6480 |
| 41 | 7011 |
| 42 | 7581 |
| 43 | 8170 |
| 44 | 8800 |
| 45 | 9450 |
| 46 | 10143 |
| 47 | 10857 |
| 48 | 11616 |
| 49 | 12397 |
| 50 | 13225 |