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A045262
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Numbers whose base-5 representation contains exactly three 1's and three 4's.
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0
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3999, 4299, 4359, 4371, 5799, 5859, 5871, 6159, 6171, 6231, 13299, 13359, 13371, 13659, 13671, 13731, 15159, 15171, 15231, 15531, 16499, 16799, 16859, 16871, 18299, 18359, 18371, 18659, 18671, 18731, 18999, 19299
(list;
graph;
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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MATHEMATICA
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okQ[n_]:=Module[{dcn5=DigitCount[n, 5]}, dcn5[[1]]==dcn5[[4]]==3]
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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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