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A053967
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Squares composed of digits {4,8,9}.
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2
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4, 9, 49, 484, 4489, 44944, 444889, 499849, 44448889, 449948944, 4444488889, 444444888889, 949488489889, 9988488448849, 44444448888889, 99488994489889, 449448988844944, 4444444488888889, 44484944448898849, 444444444888888889
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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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Select[Flatten[Table[FromDigits/@Tuples[{4, 8, 9}, n], {n, 10}]], IntegerQ[ Sqrt[#]]&] (* The program generates the first 11 terms of the sequence. To generate all of the shown terms, increase the "n" constant from 10 to 18 but the program will take a long time to run. *) (* Harvey P. Dale, Jan 11 2019 *)
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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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STATUS
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approved
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