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A111437 Least multiple of n such that every partial concatenation followed by a 3 is prime. 0

%I

%S 1,6,6,36,30,60,105,120,207,40,33,24,104,1246,285,192,476,450,228,100,

%T 294,660,483,2232,3275,3120,2025,1876,2204,1590,4557,2560,2574,680,

%U 6160,432,444,5814,7371,2520,1230,2772,6536,103708,4815,1886,11374,1392,5390

%N Least multiple of n such that every partial concatenation followed by a 3 is prime.

%e 13,163,1663,166363,... etc. are all prime.

%K base,nonn

%O 1,2

%A _Amarnath Murthy_, Aug 03 2005

%E More terms from _David Wasserman_, Jan 09 2009

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Last modified May 24 04:25 EDT 2019. Contains 323528 sequences. (Running on oeis4.)