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 | 8217108 |
| 2 | 8030443878983905982 |
| 3 | 43467818511541680701794365325328847002052 |
| 4 | 56532181488458319298205634674671152997945 |