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 | 8 |
| 2 | 48 |
| 3 | 200 |
| 4 | 675 |
| 5 | 1904 |
| 6 | 4736 |
| 7 | 10608 |
| 8 | 21925 |
| 9 | 42328 |
| 10 | 77328 |
| 11 | 134680 |
| 12 | 225351 |
| 13 | 364000 |
| 14 | 570368 |
| 15 | 869856 |
| 16 | 1295433 |
| 17 | 1888296 |
| 18 | 2700400 |
| 19 | 3795176 |
| 20 | 5250795 |
| 21 | 7160912 |
| 22 | 9638784 |
| 23 | 12818000 |
| 24 | 16857581 |
| 25 | 21942648 |
| 26 | 28290640 |
| 27 | 36151864 |