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 | 143 |
2 | 447343 |
3 | 754700909 |
4 | 1427843505563 |
5 | 2654271236904226 |
6 | 4948963310952700521 |
7 | 9223088985799640757493 |
8 | 17190329064400885392195249 |
9 | 32039205913239024375598390394 |