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 | 0 |
2 | 140634693 |
3 | 486075138127903440 |
4 | 1680019594496931198149880507 |
5 | 5806645138782932871709060110684609120 |
6 | 20069484831126506853711147766546649419638369093 |
7 | 69366081749442007616768328339033006654521310003044446320 |