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A023727 Numbers with exactly 2 1's in their base 5 expansion. +0
2
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; listen)
OFFSET

1,1
MATHEMATICA

Select[ Range[ 225 ], (Count[ IntegerDigits[ #, 5 ], 1 ]==2)& ]

CROSSREFS

Sequence in context: A036175 A154869 A043354 this_sequence A045255 A045240 A045225

Adjacent sequences: A023724 A023725 A023726 this_sequence A023728 A023729 A023730

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com)

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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