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) |
|---|---|
| 3 | 1 |
| 4 | 7 |
| 5 | 12 |
| 6 | 23 |
| 7 | 47 |
| 8 | 84 |
| 9 | 172 |
| 10 | 335 |
| 11 | 590 |
| 12 | 1000 |
| 13 | 1858 |
| 14 | 3284 |
| 15 | 6083 |
| 16 | 10816 |
| 17 | 19539 |
| 18 | 35586 |
| 19 | 65309 |
| 20 | 120625 |
| 21 | 224763 |
| 22 | 420658 |
| 23 | 790885 |
| 24 | 1494738 |