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) |
|---|---|
| 4 | 1 |
| 5 | 47 |
| 6 | 1112 |
| 7 | 11743 |
| 8 | 82988 |
| 9 | 433372 |
| 10 | 1820163 |
| 11 | 6459496 |
| 12 | 20287372 |
| 13 | 57129426 |
| 14 | 147915285 |
| 15 | 356109110 |
| 16 | 804785159 |
| 17 | 1722171831 |