%I #5 Dec 05 2013 19:55:34
%S 1,4,6,12,10,12,14,32,27,0,44,72,91,112,75,32,68,72,114,0,231,132,46,
%T 72,75,52,135,112,116,0,186,352,132,272,175,72,111,152,117,0,164,252,
%U 86,132,135,322,94,1152,735,0,153,312,106,1512,275,112,171,232,118,0,488
%N a(1) = 1; a(n) = smallest multiple of n (>n) using all nonprime digits (1,4,6,8,9 and 0) if n is a prime else using all prime digits and 1 if n is composite; or 0 if no such number exists.
%C a(10k) = 0. Are there other values of n such that a(n) =0?
%C A pigeonhole argument shows the conjecture to be true (that only a(10k) = 0). - _Joshua Zucker_, May 08 2006
%K base,nonn
%O 1,2
%A _Amarnath Murthy_, Aug 29 2002
%E Corrected and extended by _Joshua Zucker_, May 08 2006