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%I
%S 4,8,9,16,25,27,32,49,64,81,105,121,125,128,169,231,243,256,289,315,
%T 343,361,512,525,529,625,627,693,729,735,841,897,935,945,961,1024
%N (A006530[x]+A020639[x])/2 is an integer, divides x and it is not a prime number, special terms of A088948.
%e n=315=3.3.5.7 composite, (3+5)/2=7 divides n.
%Y Cf. A006530, A020639, A088948, A088595, A046687.
%K nonn
%O 1,1
%A Labos E. (labos(AT)ana.sote.hu), Nov 20 2003
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