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) |
|---|---|
| 5 | 1 |
| 6 | 26 |
| 7 | 462 |
| 8 | 7136 |
| 9 | 104123 |
| 10 | 1491822 |
| 11 | 21438666 |
| 12 | 313144000 |
| 13 | 4691684510 |
| 14 | 72594030500 |