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) |
|---|---|
| 7 | 1 |
| 8 | 1 |
| 9 | 2 |
| 10 | 5 |
| 11 | 15 |
| 12 | 30 |
| 13 | 76 |
| 14 | 170 |
| 15 | 422 |
| 16 | 961 |
| 17 | 2339 |
| 18 | 5390 |
| 19 | 12977 |
| 20 | 30059 |
| 21 | 71918 |
| 22 | 167019 |
| 23 | 397691 |
| 24 | 924931 |
| 25 | 2194478 |
| 26 | 5107991 |
| 27 | 12085695 |
| 28 | 28143758 |
| 29 | 66442935 |
| 30 | 154759821 |
| 31 | 364706675 |
| 32 | 849562628 |