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 | 8 |
| 2 | 78 |
| 3 | 6238 |
| 4 | 38925118 |
| 5 | 1515164889164158 |
| 6 | 2295724641355838227053650177278 |
| 7 | 5270351628928392053240255925779522360603268430188068127843838 |