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 | 7 |
| 2 | 241 |
| 3 | 967 |
| 4 | 15787 |
| 5 | 111577 |
| 6 | 1587499 |
| 7 | 25230061 |
| 8 | 118194961 |
| 9 | 188698981 |
| 10 | 761453863 |
| 11 | 855198067 |
| 12 | 855198067 |
| 13 | 131320994401 |
| 14 | 473676340087 |
| 15 | 8775105756643 |