You won’t find my results on the StackExchange page. It took only 3 hours for them to delete it. Maybe because it relates to a generalization of the original question. Or maybe because they thought darij grinberg's answer proves all the cases (it addresses only my #5). Oh well.

On Aug 26, 2020, at 11:58 AM, Dan Asimov <dasimov@earthlink.net> wrote:

Thanks! I've felt allergic to getting myself on too many e-mail lists since they can generate large volumes of e-mail, but maybe this one is safe.

And thanks for posting several of the top-voted puzzles, and the link to the factorial-square discussion on StackExchange.

—Dan

Mike Beeler wrote: ----- Yes, they, like all nonprofits, want donations. But they aren’t pushy. I find them a worthy cause. There were “chat” requests on the Zoom meeting suggesting they put the puzzles online. At least one was from Winkler’s books. He is working on another book, that will include (some? all?) of these MoMath ones. Many of the puzzles are from other sources. ... ... -----

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