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when toggle format what by license comment
Apr 29, 2013 at 12:16 vote accept CommunityBot
Apr 29, 2013 at 12:15 comment added user10575 Oh. I feel so silly. I did not see that $n$ is even. Weird how I stumbled on the answer without knowing that.
Apr 29, 2013 at 12:07 history answered Willie WongMod CC BY-SA 3.0