Re: another brain teaser for the math inclined
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I think you mistakenly put a couple of numbers in there and missed one!
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Actually, just in that list, he missed two, and yeah, put a couple other extra in. Still, the answer is correct in that only perfect squares will be open.
<font color="white">1,4,9,16,25,36,49,64,81,...,961. </font>
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