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Some Powers Sum Square (Posted on 2008-07-04) Difficulty: 3 of 5
Determine all possible nonnegative integer(s) P such that 22P+1 + 2P + 1 is a perfect square.

See The Solution Submitted by K Sengupta    
Rating: 2.3333 (3 votes)

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Some Thoughts first three | Comment 6 of 10 |

(0,4,12) yield (2^2, 23^2, 5793^2)

edited: wrong!! 

the 3rd one is

5792.9724^2

someone - we need analytical solution!!

Edited on July 5, 2008, 12:30 am
  Posted by Ady TZIDON on 2008-07-05 00:08:44

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