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A023726 Numbers with a single 1 in their base 5 expansion. +0
2
1, 5, 7, 8, 9, 11, 16, 21, 25, 27, 28, 29, 35, 37, 38, 39, 40, 42, 43, 44, 45, 47, 48, 49, 51, 55, 57, 58, 59, 61, 66, 71, 76, 80, 82, 83, 84, 86, 91, 96, 101, 105, 107, 108, 109, 111, 116, 121, 125, 127, 128, 129, 135, 137, 138, 139 (list; graph; listen)
OFFSET

1,2

MATHEMATICA

Select[ Range[ 150 ], (Count[ IntegerDigits[ #, 5 ], 1 ]==1)& ]

CROSSREFS

Sequence in context: A031221 A137469 A043353 this_sequence A080644 A047479 A080720

Adjacent sequences: A023723 A023724 A023725 this_sequence A023727 A023728 A023729

KEYWORD

nonn,base,easy

AUTHOR

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

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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