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Binary Palindrome Square Magic (Posted on 2015-12-24) Difficulty: 3 of 5
Find a 4x4 magic square with magic constant being 188 (base ten) and each of whose 16 entries is a non leading zeroes positive binary palindrome.

*** Disregard rotations and reflections.

No Solution Yet Submitted by K Sengupta    
Rating: 4.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Some Thoughts re(2): No Subject | Comment 3 of 11 |
(In reply to re: No Subject by Charlie)

1, 3, 5, 7, 9, 15, 17, 21, 27, 31, 33, 45, 51, 63, 65, 73, 85, 93, 99, 107, 119, 127, 129, 153, 165,

The above is a list of the qualifying numbers for a,b,c,d as

copied from A006995 (oeis).

Clearly any four members of the above set, (y compris 27,27,27,107) qualify iff they add up to 188.

Nothing wrong with providing a list of all quadruples, however, if I read correctly the puzzle, the solver was asked to "Find a 4x4 magic square etc.." which I did. 

btw, the bla-bla about  leading zeroes was totally redundant.


  Posted by Ady TZIDON on 2015-12-25 10:06:12
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