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) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 6 |
| 3 | 4 |
| 4 | 21 |
| 5 | 24 |
| 6 | 64 |
| 7 | 84 |
| 8 | 174 |
| 9 | 236 |
| 10 | 420 |
| 11 | 576 |
| 12 | 926 |
| 13 | 1260 |
| 14 | 1896 |
| 15 | 2540 |
| 16 | 3639 |
| 17 | 4800 |
| 18 | 6618 |
| 19 | 8592 |
| 20 | 11499 |
| 21 | 14700 |
| 22 | 19200 |
| 23 | 24204 |
| 24 | 30972 |
| 25 | 38544 |
| 26 | 48480 |
| 27 | 59620 |
| 28 | 73884 |
| 29 | 89892 |
| 30 | 109960 |
| 31 | 132480 |
| 32 | 160221 |
| 33 | 191308 |
| 34 | 229038 |
| 35 | 271248 |
| 36 | 321809 |
| 37 | 378264 |
| 38 | 445128 |
| 39 | 519608 |
| 40 | 606954 |
| 41 | 704016 |