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 | 1 |
| 7 | 2 |
| 8 | 9 |
| 9 | 37 |
| 10 | 121 |
| 11 | 331 |
| 12 | 793 |
| 13 | 1717 |
| 14 | 3434 |
| 15 | 6451 |
| 16 | 11561 |
| 17 | 20129 |
| 18 | 34885 |
| 19 | 62017 |
| 20 | 116281 |
| 21 | 232562 |
| 22 | 490337 |
| 23 | 1062601 |
| 24 | 2309385 |
| 25 | 4950751 |
| 26 | 10381281 |
| 27 | 21242341 |
| 28 | 42484682 |
| 29 | 83411715 |
| 30 | 161766061 |
| 31 | 312168761 |
| 32 | 603861897 |
| 33 | 1178135905 |
| 34 | 2326683921 |
| 35 | 4653367842 |