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A039820
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Numbers whose square contains the same digit more than 2/3 of the time and does not end in 0.
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1
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1, 2, 3, 38, 212, 2538, 6888, 66592, 100001, 100002, 100003, 200001, 200002, 210771, 300001, 1000001, 1000002, 1000003, 1000004, 1000005, 1055041, 2000001, 2000002, 2000003, 2000005, 2059962, 2131888, 2356384, 3000001, 3000002
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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EXAMPLE
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3082207^2 = 9499999990849.
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MATHEMATICA
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Select[Range[300000], Mod[#, 10] > 0 && Max@ DigitCount[#^2] > (2/3) IntegerLength[#^2] &] (* Giovanni Resta, Jul 29 2018 *)
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CROSSREFS
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KEYWORD
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base,hard,nonn
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AUTHOR
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STATUS
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approved
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