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 | 142 |
| 5 | 4699 |
| 6 | 77970 |
| 7 | 672506 |
| 8 | 4338248 |
| 9 | 21167201 |
| 10 | 85351595 |
| 11 | 294664274 |
| 12 | 911848844 |
| 13 | 2528561187 |
| 14 | 6501165477 |