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A053887
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Squares composed of digits {1,2,8}.
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3
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1, 81, 121, 8281, 11881, 128881, 11282881, 228281881, 1112822881, 111128222881, 11111282222881, 222128888112121, 228828882122281, 812121128112121, 1111112822222881, 8181222218111881, 111111128222222881
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OFFSET
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1,2
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LINKS
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MATHEMATICA
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Table[Select[FromDigits/@Tuples[{1, 2, 8}, n], IntegerQ[Sqrt[#]]&], {n, 18}]//Flatten (* Harvey P. Dale, Jun 03 2022 *)
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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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