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 | 3 |
| 5 | 6 |
| 6 | 11 |
| 7 | 23 |
| 8 | 46 |
| 9 | 98 |
| 10 | 206 |
| 11 | 441 |
| 12 | 928 |
| 13 | 1951 |
| 14 | 4046 |
| 15 | 8349 |
| 16 | 17062 |
| 17 | 34703 |
| 18 | 70112 |
| 19 | 141071 |
| 20 | 282420 |
| 21 | 563333 |
| 22 | 1119020 |
| 23 | 2215310 |
| 24 | 4369699 |
| 25 | 8591513 |
| 26 | 16836216 |
| 27 | 32891454 |
| 28 | 64057841 |
| 29 | 124388194 |
| 30 | 240827283 |
| 31 | 464938673 |
| 32 | 895070853 |
| 33 | 1718386387 |