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 | 1099511627776 |
| 2 | 12157665459056928801 |
| 3 | 9094947017729282379150390625 |
| 4 | 6366805760909027985741435139224001 |
| 5 | 452592555681759518058893560348969204658401 |