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 | 88 |
| 3 | 7308 |
| 4 | 1691024 |
| 5 | 889922900 |
| 6 | 927968206536 |
| 7 | 1736907362701852 |
| 8 | 5418843464230116352 |
| 9 | 26603238870832186065636 |
| 10 | 196293745325282121998886200 |
| 11 | 2096654942154151785036724164524 |