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A031152
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Squares composed of digits {2,4,5}.
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3
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4, 25, 225, 4225, 55225, 442225, 4545424, 5452225, 42445225, 44422225, 544522225, 2224254244, 4424245225, 4444222225, 4554225225, 54445222225, 55255554225, 444242245225, 444442222225, 5444452222225, 44442422245225, 44444422222225, 544444522222225
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Flatten[Table[Select[FromDigits/@Tuples[{2, 4, 5}, n], IntegerQ[Sqrt[#]]&], {n, 14}]] (* Harvey P. Dale, Oct 07 2013 *)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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Extended and corrected by author 03/2000.
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STATUS
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approved
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