%I A064272
%S A064272 0,1,1,0,2,1,1,1,0,2,2,0,2,1,1,1,2,1,2,2,1,2,1,0,1,3,2,1,2,0,3,2,0,2,1,
%T A064272 0,4,2,1,2,2,1,2,2,1,3,2,1,1,2,2,2,3,1,3,2,0,2,2,0,4,2,0,2,3,2,4,2,1,2,
%U A064272 3,1,1,3,1,4,2,1,3,1,1,5,3,0,3,3,2,2,2,0,4,2,1,3,2,1,4,1,1,2,3,2,3,4,1
%N A064272 Number of representations of n as the sum of a prime number and a nonzero 
               square.
%C A064272 a(A064233(n))=0.
%F A064272 %F A064272 a(n) = SUM(A010051(k)*A010052(n-k+1): 1<=k<=n). [From Reinhard 
               Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 05 2009]
%e A064272 6=2+4=5+1, thus a(6)=2.
%Y A064272 Cf. A064233.
%Y A064272 Sequence in context: A146061 A135936 A109707 this_sequence A117479 A118404 
               A089339
%Y A064272 Adjacent sequences: A064269 A064270 A064271 this_sequence A064273 A064274 
               A064275
%K A064272 nonn,new
%O A064272 2,5
%A A064272 Vladeta Jovovic (vladeta(AT)eunet.rs), Sep 23 2001