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A087302 Smallest nontrivial multiple of n whose digit sum is a multiple of digit sum of n. By nontrivial one means a(n) is not equal to n or (10^k)*n or a concatenation of n with itself. 0

%I #4 Dec 05 2013 19:56:20

%S 2,4,6,8,140,24,133,152,18,20,22,24,26,28,60,176,187,36,361,40,42,44,

%T 46,48,275,286,54,532,551,60,62,64,66,68,385,72,703,722,156,80,82,84,

%U 86,88,90,1702,1316,192,931,550,204,572,583,108,1045,1064,228,1624,1652,240

%N Smallest nontrivial multiple of n whose digit sum is a multiple of digit sum of n. By nontrivial one means a(n) is not equal to n or (10^k)*n or a concatenation of n with itself.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Sep 01 2003

%E More terms from _David Wasserman_, Apr 18 2005

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Last modified May 26 13:41 EDT 2024. Contains 372826 sequences. (Running on oeis4.)