Back in An Arrangement of 15 you were asked to place the numbers 1 to 15 in a line so that any two adjacent numbers summed to a square number.

Now, try to arrange the numbers from 1 to 32 in a circle, so any two adjacent numbers again sum a square number.

(In reply to beginning by Larry)

Shouldn't the sum of all 32 sums be 2*(32*33/2)=32*33=1056?

Posted by np_rt on 2005-01-09 18:00:39