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A037368
Numbers whose base-7 and base-9 expansions have no digits in common.
1
7, 8, 14, 16, 17, 22, 24, 25, 26, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 40, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 56, 57, 58, 59, 60, 61, 70, 71, 72, 74, 76, 77, 78, 79, 80, 98, 112, 114, 116, 117, 118, 121, 122, 124, 125, 135, 136, 138
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[200], Intersection[IntegerDigits[#, 7], IntegerDigits[#, 9]]=={}&] (* Vincenzo Librandi, Jun 08 2012 *)
CROSSREFS
Sequence in context: A136037 A085334 A047274 * A281710 A037970 A101517
KEYWORD
nonn,base
STATUS
approved