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 | 6 |
| 2 | 48 |
| 3 | 624 |
| 4 | 3360 |
| 5 | 32208 |
| 6 | 74256 |
| 7 | 283968 |
| 8 | 495216 |
| 9 | 1287264 |
| 10 | 4102224 |
| 11 | 5725824 |
| 12 | 13868784 |
| 13 | 23171232 |
| 14 | 29401680 |
| 15 | 45868992 |
| 16 | 83639088 |
| 17 | 142984848 |
| 18 | 168919248 |
| 19 | 270025008 |
| 20 | 360845856 |
| 21 | 414614304 |
| 22 | 615411264 |
| 23 | 787808112 |
| 24 | 1116811872 |