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 | 7142857142857142857143 |
2 | 14285714285714285714286 |
3 | 21428571428571428571429 |
4 | 730337078651685393258426966292134831460674157303370786517 |