In the sum, substitute 1+1 for 2, 1+1+1 for 3, etc to get 1+1+1..., now do it with the even numbers, then the odd, then the primes, all result in 1+1+1 forever. Do they all equal -1/12?

## Someone. Please explain

In the sum, substitute 1+1 for 2, 1+1+1 for 3, etc to get 1+1+1..., now do it with the even numbers, then the odd, then the primes, all result in 1+1+1 forever. Do they all equal -1/12?