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 | 24 |
| 3 | 128 |
| 4 | 648 |
| 5 | 3160 |
| 6 | 14984 |
| 7 | 69536 |
| 8 | 317264 |
| 9 | 1427912 |
| 10 | 6355080 |
| 11 | 28021504 |
| 12 | 122586224 |
| 13 | 532681648 |
| 14 | 2301267408 |
| 15 | 9891512000 |
| 16 | 42327269792 |
| 17 | 180410129576 |
| 18 | 766250022536 |
| 19 | 3244192404032 |
| 20 | 13696322822960 |
| 21 | 57673821115088 |
| 22 | 242287778611184 |
| 23 | 1015664308220864 |
| 24 | 4249246138360928 |