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A100699 Number of ways to partition n into two squarefree numbers that are not prime. 0

%I #4 Mar 30 2012 18:50:48

%S 0,1,0,0,0,0,1,0,0,0,1,1,0,0,1,2,0,0,0,2,1,1,1,1,1,0,2,2,1,1,2,2,0,1,

%T 2,5,1,0,2,4,2,1,3,4,3,0,3,5,3,1,1,6,2,2,2,6,3,1,3,5,5,0,4,4,4,3,4,7,

%U 3,3,4,9,4,1,4,7,5,3,6,7,5,0,5,9,4,3,5,9,3,4,7,11,5,2,7,9,7,2,8,10,7,3,8,10

%N Number of ways to partition n into two squarefree numbers that are not prime.

%C a(n) <= A071068(n).

%e a(36) = #{1+35, 6+30, 10+26, 14+22, 15+21} = 5.

%Y Cf. A000469, A061358, A005117.

%K nonn

%O 1,16

%A _Reinhard Zumkeller_, Dec 09 2004

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