Some of positive natural numbers is n(n+1)/2

So if we put n(n+1)/2 =-1/12 we get value of n less than 1.

So....what?

## Another way to look at it!

Some of positive natural numbers is n(n+1)/2

So if we put n(n+1)/2 =-1/12 we get value of n less than 1.

So....what?