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 | 6 |
| 2 | 105 |
| 3 | 58311 |
| 4 | 1008910 |
| 5 | 559902916 |
| 6 | 9687554415 |
| 7 | 5376187741821 |
| 8 | 93019896484620 |
| 9 | 51622154137063026 |
| 10 | 893177036357767525 |
| 11 | 495675918647891434531 |
| 12 | 8576285810087387291130 |
| 13 | 4759480119234899417304336 |
| 14 | 82349495455282056411663435 |
| 15 | 45700527609217585557064800441 |