Call a fraction a "unit fraction" if it can be written as 1/n, where n is a positive integer.

How many more ways can the unit fraction 1/n be written as a sum of two (possibly equivalent) unit fractions than as a difference of two unit fractions?

(In reply to a solution by Dennis)

Having been Gamer's "sounding board", more particularly for the addition side rather than the subtraction, I would like to echo Gamer's prior comment.

I must add, Gamer's solution is privy from me; my data provided clarifications only.

It would be good to view both approaches which better explains to me the data which I generated.

Posted by brianjn on 2006-10-16 02:17:40