was playing an online game and came across this triangle..
numbers looked strange to me
8 12 13
5 6 14 9
2 3 10 11 15
any ideas how to crack this one? any patterns?
Welcome to the forum. What do they want? The next row? One particular number?
In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.