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 | 10 |
| 2 | 970 |
| 3 | 912670090 |
| 4 | 760223786832147978143718730 |
| 5 | 439363892017598816969702791108195858981800447259539613873486126455827777484460810 |