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A043501
Numbers having one 3 in base 10.
11
3, 13, 23, 30, 31, 32, 34, 35, 36, 37, 38, 39, 43, 53, 63, 73, 83, 93, 103, 113, 123, 130, 131, 132, 134, 135, 136, 137, 138, 139, 143, 153, 163, 173, 183, 193, 203, 213, 223, 230, 231, 232, 234, 235, 236, 237, 238, 239, 243, 253
OFFSET
1,1
MATHEMATICA
Select[Range[9000], DigitCount[#, 10, 3]==1&] (* Enrique Pérez Herrero, Nov 29 2013 *)
KEYWORD
nonn,base,easy
STATUS
approved