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 | 1249 |
2 | 31249 |
3 | 305175781249 |
4 | 119209289550781249 |
5 | 1862645149230957031249 |
6 | 111022302462515654042363166809082031249 |
7 | 25243548967072377773175314089049159349542605923488736152648925781249 |