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) |
|---|---|
| 1 | 3 |
| 2 | 6 |
| 3 | 12 |
| 4 | 24 |
| 5 | 48 |
| 6 | 192 |
| 7 | 384 |
| 8 | 1152 |
| 9 | 6912 |
| 10 | 27648 |
| 11 | 138240 |
| 12 | 691200 |
| 13 | 3456000 |
| 14 | 34560000 |
| 15 | 138240000 |
| 16 | 414720000 |
| 17 | 2073600000 |
| 18 | 16588800000 |
| 19 | 364953600000 |
| 20 | 4744396800000 |
| 21 | 66421555200000 |
| 22 | 132843110400000 |
| 23 | 664215552000000 |
| 24 | 3321077760000000 |
| 25 | 6642155520000000 |
| 26 | 132843110400000000 |