Returns a square of order n=2m that has been claimed to be magic, but isn't.
Order of square is n=2m
This took me a whole evening to code up. And I was quite pleased with the final vectorized form: it matches Andrews's (8 by 8) example square exactly. What a crock
Robin K. S. Hankin
“Magic Squares and Cubes”, Andrews, (book)
notmagic.2n(4) is.magic(notmagic.2n(4)) is.semimagic(notmagic.2n(4))
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