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) |
|---|---|
| 4 | 0 |
| 5 | 5 |
| 6 | 21 |
| 7 | 56 |
| 8 | 120 |
| 9 | 225 |
| 10 | 385 |
| 11 | 616 |
| 12 | 936 |
| 13 | 1365 |
| 14 | 1925 |
| 15 | 2640 |
| 16 | 3536 |
| 17 | 4641 |
| 18 | 5985 |
| 19 | 7600 |
| 20 | 9520 |
| 21 | 11781 |
| 22 | 14421 |
| 23 | 17480 |
| 24 | 21000 |
| 25 | 25025 |
| 26 | 29601 |
| 27 | 34776 |
| 28 | 40600 |
| 29 | 47125 |
| 30 | 54405 |
| 31 | 62496 |
| 32 | 71456 |
| 33 | 81345 |
| 34 | 92225 |
| 35 | 104160 |
| 36 | 117216 |
| 37 | 131461 |
| 38 | 146965 |
| 39 | 163800 |
| 40 | 182040 |
| 41 | 201761 |
| 42 | 223041 |
| 43 | 245960 |