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 | 2 |
| 2 | 1 |
| 3 | 11 |
| 4 | 14 |
| 5 | 81 |
| 6 | 242 |
| 7 | 1142 |
| 8 | 4771 |
| 9 | 29009 |
| 10 | 127876 |
| 11 | 805947 |
| 12 | 4868681 |
| 13 | 31862753 |