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 | 11 |
| 4 | 210 |
| 5 | 87 |
| 6 | 228 |
| 7 | 1155 |
| 8 | 7854 |
| 9 | 66612 |
| 10 | 395646 |
| 11 | 2193303 |
| 12 | 8389010 |
| 13 | 122574155 |
| 14 | 630341910 |
| 15 | 6066475415 |