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barred spirals by wtaskew (10 subjects)
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Favorites by titaNium2 (10 subjects)
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Favorites by Pythagora (10 subjects)
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Favorites by NotThatGuy (10 subjects)
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Favorites by andytron (10 subjects)
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Favorites by bernoullilemniscate (10 subjects)
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Favorites by Patricia Nimchek (10 subjects)