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A023728 Numbers with exactly 3 1's in base 5 expansion. +0
2
31, 131, 151, 155, 157, 158, 159, 161, 166, 171, 181, 206, 231, 281, 406, 531, 631, 651, 655, 657, 658, 659, 661, 666, 671, 681, 706, 731, 751, 755, 757, 758, 759, 761, 766, 771, 775, 777, 778, 779, 785, 787, 788, 789, 790 (list; graph; listen)
OFFSET

1,1
MATHEMATICA

Select[ Range[ 800 ], (Count[ IntegerDigits[ #, 5 ], 1 ]==3)& ]

CROSSREFS

Sequence in context: A065403 A035502 A043355 this_sequence A045259 A045244 A045229

Adjacent sequences: A023725 A023726 A023727 this_sequence A023729 A023730 A023731

KEYWORD

nonn,base,easy

AUTHOR

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

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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