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) |
|---|---|
| 2 | 6 |
| 3 | 28 |
| 4 | 6 |
| 5 | 28 |
| 6 | 496 |
| 7 | 84 |
| 8 | 270 |
| 9 | 1488 |
| 10 | 1638 |
| 11 | 84 |
| 12 | 270 |
| 13 | 1488 |
| 14 | 1638 |
| 15 | 24384 |
| 16 | 210 |
| 17 | 17360 |
| 18 | 43400 |
| 19 | 284480 |
| 20 | 2229500 |
| 21 | 2886100 |
| 22 | 3780 |
| 23 | 66960 |
| 24 | 167400 |
| 25 | 406224 |
| 26 | 1097280 |
| 27 | 6656832 |
| 28 | 13035330 |
| 29 | 3780 |
| 30 | 66960 |
| 31 | 167400 |
| 32 | 406224 |
| 33 | 1097280 |
| 34 | 6656832 |
| 35 | 13035330 |
| 36 | 29410290 |