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 | 4 |
| 2 | 8 |
| 3 | 24 |
| 4 | 32 |
| 5 | 128 |
| 6 | 384 |
| 7 | 1152 |
| 8 | 3584 |
| 9 | 5120 |
| 10 | 6144 |
| 11 | 8192 |
| 12 | 73728 |
| 13 | 131072 |
| 14 | 524288 |
| 15 | 5505024 |
| 16 | 10616832 |
| 17 | 14680064 |
| 18 | 18874368 |
| 19 | 109051904 |
| 20 | 169869312 |
| 21 | 654311424 |
| 22 | 738197504 |
| 23 | 2147483648 |
| 24 | 21474836480 |
| 25 | 51539607552 |
| 26 | 824633720832 |
| 27 | 3710851743744 |