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Square numbers n divisible by (at least one) sum of two positive digits of n.
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%I #2 Mar 30 2012 17:26:31

%S 36,81,144,196,256,289,324,576,676,729,1089,1156,1225,1296,1521,1764,

%T 1936,2116,2304,2601,2916,3025,3136,3600,3969,4356,4624,5184,5929,

%U 6084,6400,7056,7744,8100,8464,9216,9801,10816,11025,11236,11664,12100,12321

%N Square numbers n divisible by (at least one) sum of two positive digits of n.

%C Subsequence of A171674.

%e 12^2=144=(4+4)*18, 14^2=196=(1+7)*28, 171^2=29241=(1+2)*9747.

%Y Cf. A005349 Niven (or Harshad) numbers: numbers that are divisible by the sum of their digits, A171674 Numbers n divisible by (at least one) sum of two positive digits of n.

%K base,nonn

%O 1,1

%A _Zak Seidov_, Dec 15 2009