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 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 8 |
| 6 | 16 |
| 7 | 32 |
| 8 | 64 |
| 9 | 128 |
| 10 | 256 |
| 11 | 512 |
| 12 | 1024 |
| 13 | 2047 |
| 14 | 4093 |
| 15 | 8185 |
| 16 | 16368 |
| 17 | 32732 |
| 18 | 65456 |
| 19 | 130896 |
| 20 | 261760 |
| 21 | 523456 |
| 22 | 1046784 |
| 23 | 2093312 |
| 24 | 4186112 |
| 25 | 8371200 |
| 26 | 16740352 |
| 27 | 33476610 |
| 28 | 66945033 |
| 29 | 133873694 |
| 30 | 267714648 |
| 31 | 535363824 |
| 32 | 1070596720 |
| 33 | 2140931616 |
| 34 | 4281339648 |
| 35 | 8561632256 |