Thanks for providing that! There is a link to his paper at the bottom. Also, it will eventually take you to the Electronic journal of combinatorics.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Thinking is cheating.
When I worked in produce, the oranges came 72 or 113 in a box.
I used to sift thru IEEE journals from the 1920's to the present on logic circuits, talking about combinatorics.
Once I ran into a neat algorithm using XOR gates that I could not comprehend though.
igloo myrtilles fourmis