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 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 7 |
| 8 | 14 |
| 9 | 27 |
| 10 | 54 |
| 11 | 108 |
| 12 | 216 |
| 13 | 431 |
| 14 | 862 |
| 15 | 1724 |
| 16 | 3450 |
| 17 | 6899 |
| 18 | 13798 |
| 19 | 27596 |
| 20 | 55190 |
| 21 | 110378 |
| 22 | 220754 |
| 23 | 441506 |
| 24 | 883010 |
| 25 | 1766020 |
| 26 | 3532046 |
| 27 | 7064092 |
| 28 | 14128182 |
| 29 | 28256364 |
| 30 | 56512728 |
| 31 | 113025456 |
| 32 | 226050910 |
| 33 | 452101820 |
| 34 | 904203640 |
| 35 | 1808407284 |