A043393 Numbers whose base-7 representation contains exactly one 0.

7, 14, 21, 28, 35, 42, 50, 51, 52, 53, 54, 55, 56, 63, 70, 77, 84, 91, 99, 100, 101, 102, 103, 104, 105, 112, 119, 126, 133, 140, 148, 149, 150, 151, 152, 153, 154, 161, 168, 175, 182, 189, 197, 198, 199, 200, 201, 202, 203, 210

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base

Crossrefs

Cf. A007093.

Programs

Mathematica

Select[Range[250],DigitCount[#,7,0]==1&] (* Harvey P. Dale, Sep 26 2019 *)