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 | 16 |
| 5 | 32 |
| 6 | 64 |
| 7 | 128 |
| 8 | 256 |
| 9 | 511 |
| 10 | 1013 |
| 11 | 1981 |
| 12 | 3797 |
| 13 | 7099 |
| 14 | 12911 |
| 15 | 22819 |
| 16 | 39203 |
| 17 | 65536 |
| 18 | 106762 |
| 19 | 169766 |
| 20 | 263950 |
| 21 | 401930 |
| 22 | 600370 |
| 23 | 880970 |
| 24 | 1271626 |
| 25 | 1807781 |
| 26 | 2533987 |
| 27 | 3505699 |
| 28 | 4791323 |
| 29 | 6474541 |
| 30 | 8656937 |
| 31 | 11460949 |
| 32 | 15033173 |
| 33 | 19548046 |