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 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 7 |
| 7 | 13 |
| 8 | 24 |
| 9 | 44 |
| 10 | 99 |
| 11 | 185 |
| 12 | 328 |
| 13 | 612 |
| 14 | 1521 |
| 15 | 2956 |
| 16 | 4693 |
| 17 | 8900 |
| 18 | 20185 |
| 19 | 33049 |
| 20 | 53332 |
| 21 | 144483 |
| 22 | 291848 |
| 23 | 459666 |
| 24 | 1135955 |
| 25 | 2443813 |
| 26 | 4246722 |
| 27 | 12285846 |
| 28 | 19716010 |
| 29 | 34278280 |
| 30 | 118852511 |
| 31 | 154192582 |
| 32 | 281332336 |
| 33 | 550783729 |
| 34 | 1117407516 |
| 35 | 2301424427 |