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 | 512 |
| 10 | 1023 |
| 11 | 2044 |
| 12 | 4084 |
| 13 | 8160 |
| 14 | 16304 |
| 15 | 32576 |
| 16 | 65088 |
| 17 | 130048 |
| 18 | 259841 |
| 19 | 519173 |
| 20 | 1037329 |
| 21 | 2072626 |
| 22 | 4141192 |
| 23 | 8274272 |
| 24 | 16532336 |
| 25 | 33032288 |
| 26 | 65999871 |
| 27 | 131870458 |
| 28 | 263482601 |
| 29 | 526449078 |
| 30 | 1051866919 |
| 31 | 2101673384 |
| 32 | 4199229896 |
| 33 | 8390234112 |