%I #10 Feb 24 2023 11:59:43
%S 4,6,6,8,8,8,9,9,9,9,10,10,10,10,10,12,12,12,12,12,12,14,14,14,14,14,
%T 14,14,15,15,15,15,15,15,15,15,16,16,16,16,16,16,16,16,16,18,18,18,18,
%U 18,18,18,18,18,18,20,20,20,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21
%N n-th composite number appears n times.
%C A002808(n) appears n times.
%Y Cf. A002808, A111654, A111655.
%K easy,less,nonn
%O 1,1
%A _Jonathan Vos Post_, Aug 12 2005