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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 5 |
| 7 | 6 |
| 8 | 8 |
| 9 | 16 |
| 10 | 24 |
| 11 | 150 |
| 12 | 300 |
| 13 | 5952 |
| 14 | 7752 |
| 15 | 7955 |
| 16 | 9755 |
| 17 | 9958 |
| 18 | 11904 |
| 19 | 13704 |
| 20 | 13907 |
| 21 | 14110 |
| 22 | 15707 |
| 23 | 15910 |
| 24 | 392850 |
| 25 | 751043 |
| 26 | 4585544 |
| 27 | 12737804 |
| 28 | 12828748 |
| 29 | 16380296 |
| 30 | 19289406 |
| 31 | 19380350 |
| 32 | 20228253 |
| 33 | 33115710 |
| 34 | 395849700 |
| 35 | 1339182534 |