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 | 448 |
| 4 | 4655 |
| 5 | 76092 |
| 6 | 30490 |
| 7 | 80075 |
| 8 | 430302 |
| 9 | 2285047 |
| 10 | 6078768 |
| 11 | 20376032 |
| 12 | 13303523 |
| 13 | 21208739 |
| 14 | 49734303 |
| 15 | 131517548 |
| 16 | 249598727 |
| 17 | 540742895 |
| 18 | 404616118 |
| 19 | 549711709 |
| 20 | 983715865 |
| 21 | 1910489463 |
| 22 | 3070327312 |