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Least multiple of n with digit reversal a prime, or 0 if no such multiple exists.
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%I #4 Dec 05 2013 19:57:00

%S 2,2,3,16,5,0,7,16,0,20,11,0,13,14,0,16,17,0,38,20,0,110,92,0,50,104,

%T 0,112,145,30,31,32,0,34,35,0,37,38,0,160,164,0,172,1100,0,92,188,0,

%U 98,50,0,104,106,0,110,112,0,754,118,0,305,124,0,128,130,0,134,136,0,70,71,0

%N Least multiple of n with digit reversal a prime, or 0 if no such multiple exists.

%C a(3k) = 0, k > 0.

%C A subsidiary sequence could be obtained by replacing a(3n) by the least multiple of n which on division by largest power of 3 that divides it gives a number whose digit reversal is prime.

%C Note also that a(77) = 0. - _Joshua Zucker_, May 04 2006

%K base,easy,nonn

%O 1,1

%A _Amarnath Murthy_, Jul 06 2005

%E More terms from _Joshua Zucker_, May 04 2006