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 | 20847942560791 |
| 2 | 21815124622913 |
| 3 | 35581541330719 |
| 4 | 40546521517819 |
| 5 | 47950363950791 |
| 6 | 54808830290791 |
| 7 | 65923105730719 |
| 8 | 84573572180719 |
| 9 | 85950417240719 |