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A023715 Numbers with exactly 2 2's in base 4 expansion. +0
2
10, 26, 34, 38, 40, 41, 43, 46, 58, 74, 90, 98, 102, 104, 105, 107, 110, 122, 130, 134, 136, 137, 139, 142, 146, 150, 152, 153, 155, 158, 160, 161, 163, 164, 165, 167, 172, 173, 175, 178, 182, 184, 185, 187, 190, 202, 218, 226 (list; graph; listen)
OFFSET

1,1
MATHEMATICA

Select[ Range[ 240 ], (Count[ IntegerDigits[ #, 4 ], 2 ]==2)& ]

CROSSREFS

Sequence in context: A125035 A067264 A043342 this_sequence A045143 A005278 A045039

Adjacent sequences: A023712 A023713 A023714 this_sequence A023716 A023717 A023718

KEYWORD

nonn,base,easy

AUTHOR

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

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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