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) |
|---|---|
| 2 | 1 |
| 3 | 5 |
| 4 | 5 |
| 5 | 5 |
| 6 | 5 |
| 7 | 69 |
| 8 | 197 |
| 9 | 453 |
| 10 | 453 |
| 11 | 1477 |
| 12 | 3525 |
| 13 | 3525 |
| 14 | 3525 |
| 15 | 3525 |
| 16 | 3525 |
| 17 | 3525 |
| 18 | 134597 |
| 19 | 396741 |
| 20 | 396741 |
| 21 | 1445317 |
| 22 | 1445317 |
| 23 | 1445317 |
| 24 | 9833925 |
| 25 | 26611141 |
| 26 | 60165573 |
| 27 | 127274437 |
| 28 | 261492165 |
| 29 | 529927621 |
| 30 | 1066798533 |
| 31 | 2140540357 |
| 32 | 2140540357 |
| 33 | 2140540357 |
| 34 | 10730474949 |
| 35 | 27910344133 |