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 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 26 |
| 5 | 31 |
| 6 | 64 |
| 7 | 156 |
| 8 | 218 |
| 9 | 521 |
| 10 | 1048 |
| 11 | 2014 |
| 12 | 4096 |
| 13 | 8291 |
| 14 | 26384 |
| 15 | 31768 |
| 16 | 65536 |
| 17 | 161244 |
| 18 | 232071 |
| 19 | 514188 |
| 20 | 1097251 |
| 21 | 2048576 |
| 22 | 4294304 |
| 23 | 8388608 |
| 24 | 26777126 |
| 25 | 33554431 |
| 26 | 67208864 |
| 27 | 168435456 |
| 28 | 234127718 |
| 29 | 536870921 |
| 30 | 1247483648 |
| 31 | 2073742814 |
| 32 | 4194967196 |
| 33 | 8589934591 |
| 34 | 27279869284 |
| 35 | 34359738368 |
| 36 | 68729476736 |
| 37 | 174877906944 |