______ | | | | |_____|
_______ | | | |__| __| | |_|_| |__|_|_| (those are supposed to be perfect squares.) 4 is niec because: ____ |_|_| |_|_|
What kind of numbers aren't nice?
I think it's triangular numbers
its just a hunch. im too tired to try proving it now.
coz they r good 4 making triangles, not squares.
Btw I've only made some progress on this, and don't know the answer. So it's open :P