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 | 2 |
| 4 | 49 |
| 5 | 1244 |
| 6 | 12329 |
| 7 | 81900 |
| 8 | 398907 |
| 9 | 1562362 |
| 10 | 5153001 |
| 11 | 14907120 |
| 12 | 38753358 |
| 13 | 92417760 |
| 14 | 204977323 |
| 15 | 427812496 |
| 16 | 847346181 |
| 17 | 1604300270 |