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A072961
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Numbers using only the digits 2 and 5, or numbers that are both curved and linear.
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0
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2, 5, 22, 25, 52, 55, 222, 225, 252, 255, 522, 525, 552, 555, 2222, 2225, 2252, 2255, 2522, 2525, 2552, 2555, 5222, 5225, 5252, 5255, 5522, 5525, 5552, 5555, 22222, 22225, 22252, 22255, 22522, 22525, 22552, 22555, 25222, 25225, 25252, 25255
(list; graph; refs; listen; history; internal format)
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