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A136948
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Numbers n such that n and the square of n use only the digits 0, 4, 5, 6 and 7.
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1
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0, 74, 76, 740, 760, 7400, 7600, 74000, 74476, 76000, 77766, 667574, 740000, 744760, 757666, 760000, 777660, 777666, 6675740, 7075076, 7400000, 7447600, 7576660, 7600000, 7776600, 7776660, 66757400, 67577766, 67607474, 70750760, 74000000, 74474476, 74476000, 74476574, 75765474, 75766600, 76000000, 77750074, 77766000, 77766600, 667574000
(list; graph; refs; listen; history; internal format)
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