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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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A084703 | Comment 3 of 10 |

0, 4, 144, 4900, 166464, 5654884, 192099600, 6525731524, 221682772224, 7530688524100

Relevance still in doubt.

http://www.research.att.com/~njas/sequences/A084703

 


  Posted by xdog on 2008-07-04 21:54:02
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