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 A129846 Numbers n such that n and 3n share at least one digit. 6
 5, 10, 13, 14, 15, 17, 20, 24, 25, 28, 30, 31, 35, 40, 41, 42, 45, 47, 48, 49, 50, 51, 52, 53, 55, 56, 57, 60, 61, 62, 65, 70, 71, 72, 75, 79, 80, 82, 85, 86, 90, 92, 93, 95, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 110, 113, 114, 115, 117, 120, 123, 124, 125 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS MAPLE a:=proc(n) if nops(convert(convert(n, base, 10), set) intersect convert(convert(3*n, base, 10), set))>0 then n else fi end: seq(a(n), n=1..145); # Emeric Deutsch, May 27 2007 MATHEMATICA Select[Range[300], Length[Intersection[IntegerDigits[ # ], IntegerDigits[3*# ]]] > 0 &] (* Stefan Steinerberger, May 24 2007 *) CROSSREFS Sequence in context: A276606 A296445 A313376 * A194464 A192336 A001974 Adjacent sequences:  A129843 A129844 A129845 * A129847 A129848 A129849 KEYWORD base,easy,nonn AUTHOR Eric Angelini, May 22 2007 EXTENSIONS More terms from Stefan Steinerberger and Emeric Deutsch, May 24 2007 STATUS approved

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Last modified December 13 06:26 EST 2019. Contains 329968 sequences. (Running on oeis4.)