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Smallest nontrivial multiple of n with each digit occurring with the same frequency >1. By nontrivial we mean a(n) is not a concatenation of n with itself.
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%I #5 Dec 05 2013 19:56:21

%S 22,44,66,88,1010,222,1001,1144,333,1100,22,444,1001,2002,555,2112,

%T 1122,666,1881,1100,777,44,1771,888,1100,1144,999,2772,2233,3300,4433,

%U 2112,66,1122,1155,1188,111,3344,3003,2200,2255,2772,3311,88,4455,4554,1551

%N Smallest nontrivial multiple of n with each digit occurring with the same frequency >1. By nontrivial we mean a(n) is not a concatenation of n with itself.

%e a(12) = 2112 and not 1212 ( trivial).

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Sep 10 2003

%E More terms from _David Wasserman_, May 31 2005