A037348 Numbers whose base-3 and base-7 expansions have no digits in common.

3, 4, 5, 6, 8, 24, 25, 26, 27, 30, 31, 32, 33, 34, 37, 38, 39, 40, 41, 45, 46, 47, 48, 60, 62, 74, 78, 80, 117, 118, 121, 151, 152, 171, 172, 173, 174, 178, 179, 180, 181, 185, 186, 187, 188, 192, 193, 194, 195, 202, 218, 220, 221, 222

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Mathematica

Select[Range[250], Intersection[IntegerDigits[#, 3], IntegerDigits[#, 7]] == {}&] (* Harvey P. Dale, Feb 27 2012 *)

Crossrefs

Sequence in context: A103103 A217347 A249798 * A277898 A212640 A333694

Adjacent sequences: A037345 A037346 A037347 * A037349 A037350 A037351

Keyword

nonn,base

Author

Clark Kimberling

Extensions

Definition clarified by Harvey P. Dale, Feb 27 2012

Status

approved