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Arithmetic derivative of numbers which can be written as sum of a positive square and a positive cube.
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%I #3 Mar 30 2012 18:50:29

%S 1,1,6,7,16,1,44,15,32,1,14,60,1,1,48,45,56,22,51,18,72,156,1,80,176,

%T 43,1,20,140,1,216,1,63,165,1,448,46,69,50,34,152,185,236,30,168,129,

%U 123,151,62,42,216,252,1,284,105,432,38,284,1,240,115,356,1,1,211,456

%N Arithmetic derivative of numbers which can be written as sum of a positive square and a positive cube.

%Y Cf. A078386.

%K nonn

%O 1,3

%A _Reinhard Zumkeller_, Nov 25 2002