Problem 251Published on Saturday, 20th June 2009, 09:00 am; Solved by 851; Difficulty rating: 70%
A triplet of positive integers (a,b,c) is called a Cardano Triplet if it satisfies the condition:
For example, (2,1,5) is a Cardano Triplet.
There exist 149 Cardano Triplets for which a+b+c ≤ 1000.
Find how many Cardano Triplets exist such that a+b+c ≤ 110,000,000.