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 | 2 |
| 2 | 3876345660966505581780035851822613413637045687942554538584103751904155528656612320450718024564637501177857 |
| 3 | 15784273697726525594915158437704910106795669967932151790483411869827615323130147795459165734845011296559523773 |