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Topic: triangular numbers and dets
Replies: 32   Last Post: Apr 26, 2012 1:53 PM

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 jm bergot Posts: 165 From: victoria bc Registered: 6/30/09
Re: triangular numbers and dets
Posted: Apr 10, 2012 2:04 PM

I believe I've exhausted my det topics.

(A) The set {5,22,59} has the property that the sum of any two is a power. Can you find a larger set? Is there
perhaps THE largest set of X terms?

(B)For the first three odd primes 3^2 +3*5 + 5^2=49=7^2.
Can you find any other a^2 + a*b + b^2 = c^2?

Date Subject Author
3/29/12 jm bergot
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