Post without words #25

About Brent

Associate Professor of Computer Science at Hendrix College. Functional programmer, mathematician, teacher, pianist, follower of Jesus.
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4 Responses to Post without words #25

  1. Naren Sundar says:

    For the grid in row r and column c, it looks like the numbers, n, which exist are filled in indices corresponding to the sequence (n +1 mod r,n + 1 mod c). I don’t know about the empty squares.

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