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) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 11 |
| 5 | 27 |
| 6 | 89 |
| 7 | 310 |
| 8 | 1311 |
| 9 | 6253 |
| 10 | 34325 |
| 11 | 212247 |
| 12 | 1466180 |
| 13 | 11167987 |
| 14 | 92889294 |
| 15 | 836021796 |