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A241144 Numbers n such that n and 8n share at least one digit. 5

%I #6 Apr 25 2014 11:21:54

%S 10,13,14,15,16,17,18,19,20,21,24,25,26,27,28,29,30,32,38,39,40,43,46,

%T 47,48,49,50,54,57,60,62,65,67,70,72,76,80,81,85,86,90,96,97,98,99,

%U 100,101,102,105,108,110,114,119,120,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141

%N Numbers n such that n and 8n share at least one digit.

%e 13 is in the sequence since 13 and 8*13 = 104 and together they share the digit 1.

%t fQ[n_] := Intersection[ IntegerDigits[ n], IntegerDigits[8 n]] != {}; Select[ Range[ 140], fQ]

%Y Cf. A129845, A129846, A129848, A241141, A241142, A241143, A241145, A241146.

%K base,easy,nonn

%O 1,1

%A _Robert G. Wilson v_, Apr 16 2014

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Last modified March 30 04:37 EDT 2024. Contains 371289 sequences. (Running on oeis4.)