%I #7 May 31 2022 23:43:56
%S 1,1,1,1,2,2,3,3,3,3,4,4,4,5,6,6,6,6,6,6,6,6,7,7,7,7,7,7,8,8,9,10,10,
%T 10,10,10,10,10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11,11,11,
%U 11,11,12,13,13,13,14,14,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,16,17
%N Number of nonprimes among first n terms of A090252.
%C It appears that this sequence controls the growth of A090252. That is, almost all the terms of A090252 lie on the line A090252(n) = k-th prime, where k = n - a(n).
%H N. J. A. Sloane, <a href="/A354166/b354166.txt">Table of n, a(n) for n = 1..34886</a>
%Y Cf. A090252, A354164, A354165.
%K nonn
%O 1,5
%A _N. J. A. Sloane_, May 31 2022