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A023718 Numbers with a single 3 in their base 4 expansion. +0
2
3, 7, 11, 12, 13, 14, 19, 23, 27, 28, 29, 30, 35, 39, 43, 44, 45, 46, 48, 49, 50, 52, 53, 54, 56, 57, 58, 67, 71, 75, 76, 77, 78, 83, 87, 91, 92, 93, 94, 99, 103, 107, 108, 109, 110, 112, 113, 114, 116, 117, 118, 120, 121, 122, 131, 135 (list; graph; listen)
OFFSET

1,1

MATHEMATICA

Select[ Range[ 140 ], (Count[ IntegerDigits[ #, 4 ], 3 ]==1)& ]

CROSSREFS

Sequence in context: A093931 A083754 A043345 this_sequence A076184 A135137 A055050

Adjacent sequences: A023715 A023716 A023717 this_sequence A023719 A023720 A023721

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gerard (ogerard(AT)ext.jussieu.fr)

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.


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