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) |
|---|---|
| 0 | 11 |
| 1 | 44 |
| 2 | 176 |
| 3 | 704 |
| 4 | 2816 |
| 5 | 11264 |
| 6 | 45056 |
| 7 | 180224 |
| 8 | 720896 |
| 9 | 2883584 |
| 10 | 11534336 |
| 11 | 46137344 |
| 12 | 184549376 |
| 13 | 738197504 |
| 14 | 2952790016 |
| 15 | 11811160064 |
| 16 | 47244640256 |
| 17 | 188978561024 |
| 18 | 755914244096 |
| 19 | 3023656976384 |
| 20 | 12094627905536 |
| 21 | 48378511622144 |
| 22 | 193514046488576 |
| 23 | 774056185954304 |
| 24 | 3096224743817216 |