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 | 42 |
| 3 | 1806 |
| 4 | 2786 |
| 5 | 47058 |
| 6 | 73178 |
| 7 | 85082 |
| 8 | 2143066830 |
| 9 | 2214502422 |
| 10 | 3138798830 |
| 11 | 4404051298 |
| 12 | 4428107218 |
| 13 | 4428595298 |