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 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 1 |
| 14 | 1 |
| 15 | 2 |
| 16 | 4 |
| 17 | 8 |
| 18 | 16 |
| 19 | 32 |
| 20 | 64 |
| 21 | 128 |
| 22 | 256 |
| 23 | 512 |
| 24 | 1024 |
| 25 | 2048 |
| 26 | 4096 |
| 27 | 8191 |
| 28 | 16381 |
| 29 | 32760 |
| 30 | 65516 |
| 31 | 131024 |
| 32 | 262032 |
| 33 | 524032 |
| 34 | 1048000 |
| 35 | 2095872 |
| 36 | 4191488 |
| 37 | 8382464 |
| 38 | 16763904 |
| 39 | 33525760 |
| 40 | 67047424 |
| 41 | 134086657 |
| 42 | 268156933 |
| 43 | 536281106 |
| 44 | 1072496696 |