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) |
|---|---|
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 1 |
| 13 | 1 |
| 14 | 6 |
| 15 | 16 |
| 16 | 59 |
| 17 | 188 |
| 18 | 685 |
| 19 | 2412 |
| 20 | 8825 |
| 21 | 32110 |
| 22 | 118505 |
| 23 | 437526 |
| 24 | 1624492 |
| 25 | 6043496 |
| 26 | 22553387 |
| 27 | 84345031 |
| 28 | 316183706 |
| 29 | 1187740914 |
| 30 | 4471145942 |
| 31 | 16864755973 |
| 32 | 63737132585 |
| 33 | 241337964503 |
| 34 | 915500561602 |