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 | 157 |
| 2 | 6011 |
| 3 | 55717 |
| 4 | 74636904300223 |
| 5 | 1524920857037139836753 |
| 6 | 533561095785570791522387803 |
| 7 | 960826779344998235261901369163166807780807 |