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A023727
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Numbers with exactly 2 1's in their base 5 expansion.
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2
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6, 26, 30, 32, 33, 34, 36, 41, 46, 56, 81, 106, 126, 130, 132, 133, 134, 136, 141, 146, 150, 152, 153, 154, 160, 162, 163, 164, 165, 167, 168, 169, 170, 172, 173, 174, 176, 180, 182, 183, 184, 186, 191, 196, 201, 205, 207, 208
(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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Select[ Range[ 225 ], (Count[ IntegerDigits[ #, 5 ], 1 ]==2)& ]
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PROG
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CROSSREFS
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KEYWORD
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nonn,base,easy
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AUTHOR
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STATUS
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approved
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