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A052069
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a(n)^2 is the smallest square whose digits occur with the same frequency n.
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6
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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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31646191^2 = 1001481404808481 and its digits 0, 1, 4 and 8 each occur four times.
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MATHEMATICA
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Table[i = 0;
While[x = i^2; Union@DeleteCases[DigitCount[x], 0] != {n}, i++];
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CROSSREFS
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KEYWORD
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nonn,base,more,nice
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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