The server is currently being attacked by a "DDOS", so if you can't get on, or odd things happen, you will know why.
Not much I can do, as these attacks are anonymous.
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
Have not had any problems yet...
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.