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 | 4 |
| 2 | 80 |
| 3 | 10736 |
| 4 | 45205 |
| 5 | 58256 |
| 6 | 481580 |
| 7 | 810181 |
| 8 | 5321861 |
| 9 | 8223821 |
| 10 | 1342750076 |
| 11 | 4014039205 |
| 12 | 6425372269 |
| 13 | 7089305869 |
| 14 | 9801001981 |
| 15 | 1057798964204 |
| 16 | 4553034666541 |
| 17 | 5261853984181 |
| 18 | 8977355147344 |
| 19 | 9962308611856 |