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A054259
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Squares having last digit equal to the sum of the other digits.
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1
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729, 1089, 1225, 3025, 3249, 15129, 21025, 21609, 23409, 31329, 205209, 2241009, 14040009, 15000129, 20223009, 23011209, 104101209, 110313009, 1000014129, 1004010012009, 1010031030009, 10004001000120009, 10010003100300009
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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FORMULA
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MATHEMATICA
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Select[Range[101*10^6]^2, Length[Union[Total/@TakeDrop[IntegerDigits[#], -1]]] == 1&] (* Harvey P. Dale, Aug 26 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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EXTENSIONS
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STATUS
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approved
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