A032833 Numbers whose set of base-9 digits is {3,4}.

3, 4, 30, 31, 39, 40, 273, 274, 282, 283, 354, 355, 363, 364, 2460, 2461, 2469, 2470, 2541, 2542, 2550, 2551, 3189, 3190, 3198, 3199, 3270, 3271, 3279, 3280, 22143, 22144, 22152, 22153, 22224, 22225, 22233, 22234, 22872, 22873

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base
• easy

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..1000
• Index entries for 3-automatic sequences.

Programs

Magma

[n: n in [1..25000] | Set(IntegerToSequence(n, 9)) subset {3, 4}]; // Vincenzo Librandi, May 30 2012

Mathematica

Flatten[Table[FromDigits[#,9]&/@Tuples[{3,4},n],{n,5}]] (* Vincenzo Librandi, May 30 2012 *)