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%I #4 Sep 26 2014 13:28:11
%S 1,1,2,1,3,1,4,3,4,3,7,3,8,5,8,6,11,4,12,7,11,9,15,6,15,12,16,12,20,4,
%T 21,15,19,16,22,10,26,18,23,17,29,11,30,22,24,24,33,16,34,22,31,25,38,
%U 19,36,27,35,30,43,15,44,33,36,34,44,22,49,36,43,27
%N Number of nonprimes in n-th row of triangle A077581.
%C a(n) = n - A247815(n)
%o (Haskell)
%o a247892 n = n - a247815 n
%Y Cf. A077581, A247815.
%K nonn
%O 1,3
%A _Reinhard Zumkeller_, Sep 26 2014
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