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 | 2 |
| 3 | 2 |
| 4 | 2 |
| 5 | 1447 |
| 6 | 9769 |
| 7 | 17231 |
| 8 | 17231 |
| 9 | 32611 |
| 10 | 18527009 |
| 11 | 161205841 |
| 12 | 3123824801 |
| 13 | 26813406071 |
| 14 | 4398156030379 |
| 15 | 4398156030379 |