Create a spiral visualizer #577
Description
Motivating example: use this visualizer with A000040 ("The prime numbers") to draw the Ulam spiral. This visualizer could be, but doesn't need to be, a skin over the FormulaGrid visualizer.
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Motivating example: use this visualizer with A000040 ("The prime numbers") to draw the Ulam spiral. This visualizer could be, but doesn't need to be, a skin over the FormulaGrid visualizer.