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 | 3 |
| 3 | 107 |
| 4 | 5 |
| 5 | 347 |
| 6 | 1607 |
| 7 | 1277 |
| 8 | 21557 |
| 9 | 51867197 |
| 10 | 11 |
| 11 | 180078317 |
| 12 | 1761702947 |
| 13 | 8776320587 |
| 14 | 27649987598537 |
| 15 | 291598227841757 |
| 16 | 17 |