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) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 6 |
| 7 | 10 |
| 8 | 20 |
| 9 | 36 |
| 10 | 70 |
| 11 | 130 |
| 12 | 252 |
| 13 | 475 |
| 14 | 916 |
| 15 | 1745 |
| 16 | 3362 |
| 17 | 6438 |
| 18 | 12410 |
| 19 | 23852 |
| 20 | 46020 |
| 21 | 88697 |
| 22 | 171339 |
| 23 | 330938 |
| 24 | 640189 |
| 25 | 1238751 |
| 26 | 2399677 |
| 27 | 4650819 |
| 28 | 9021862 |
| 29 | 17510819 |
| 30 | 34013311 |
| 31 | 66106491 |
| 32 | 128568177 |
| 33 | 250191797 |
| 34 | 487168941 |
| 35 | 949133722 |
| 36 | 1850211247 |
| 37 | 3608650388 |