This past weekend, as Max was learning to stack cups quickly, he and I discussed triangle numbers. One way to describe the set of triangle numbers is the set of numbers that make complete rows when ...
This past week’s puzzle: This past weekend, as Max was learning to stack cups quickly, he and I discussed triangle numbers. One way to describe the set of triangle numbers is the set of numbers that ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results