%I #4 Oct 15 2013 22:32:14
%S 4,8,12,16,20,24,27,28,32,36,40,44,45,48,52,56,60,63,64,68,72,76,80,
%T 84,88,92,96,99,100,104,108,112,116,117,120,124,128,132,136,140,144,
%U 148,152,153,156,160,164,168,171,172,175,176,180,184,188,192,196,200,204
%N Smallest prime factor of arithmetic derivative of n equals that of n.
%Y Cf. A003415.
%K nonn
%O 1,1
%A _Labos Elemer_, Jul 23 2003
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