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 | 6 |
| 2 | 22 |
| 3 | 64 |
| 4 | 162 |
| 5 | 372 |
| 6 | 792 |
| 7 | 1584 |
| 8 | 3003 |
| 9 | 5434 |
| 10 | 9438 |
| 11 | 15808 |
| 12 | 25636 |
| 13 | 40392 |
| 14 | 62016 |
| 15 | 93024 |
| 16 | 136629 |
| 17 | 196878 |
| 18 | 278806 |
| 19 | 388608 |
| 20 | 533830 |
| 21 | 723580 |
| 22 | 968760 |
| 23 | 1282320 |
| 24 | 1679535 |
| 25 | 2178306 |
| 26 | 2799486 |
| 27 | 3567232 |
| 28 | 4509384 |