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A043503
Numbers having three 3's in base 10.
3
333, 1333, 2333, 3033, 3133, 3233, 3303, 3313, 3323, 3330, 3331, 3332, 3334, 3335, 3336, 3337, 3338, 3339, 3343, 3353, 3363, 3373, 3383, 3393, 3433, 3533, 3633, 3733, 3833, 3933, 4333, 5333, 6333, 7333, 8333, 9333, 10333
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[11000], DigitCount[#, 10, 3]==3&] (* Harvey P. Dale, Apr 13 2015 *)
CROSSREFS
Subsequence of A011533.
Sequence in context: A066801 A066349 A372186 * A202311 A319011 A233030
KEYWORD
nonn,base
STATUS
approved