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 | 41647 |
| 3 | 3197891 |
| 4 | 630397289 |
| 5 | 779089704751 |
| 6 | 3819383648849 |
| 7 | 44041722668737 |
| 8 | 1322879640047263 |
| 9 | 9863536132182127 |
| 10 | 16069251644649407 |
| 11 | 32520030920151967 |