%I #5 Jul 05 2014 13:08:09
%S 0,0,0,0,0,9,0,9,9,0,0,0,0,0,9,27,36,36,0,0,0,27,27,36,27,36,36,0,0,0,
%T 0,0,9,0,9,9,0,0,0,0,0,9,27,36,36,81,81,81,108,108,117,108,117,117,0,
%U 0,0,0,0,9,0,9,9,81,81,81,81,81,90,108,117,117,81
%N Differences between A008586 (multiples of 4) and A242399.
%C a(n) = A008586(n) - A242399(n);
%C a(m) = 0 iff m is a term of A242407;
%C a(A242407(n)) = 0; a(A242408(n)) > 0.
%H Reinhard Zumkeller, <a href="/A242400/b242400.txt">Table of n, a(n) for n = 0..10000</a>
%o (Haskell)
%o a242400 n = a008586 n - a242399 n
%Y Cf. A048728.
%K nonn
%O 0,6
%A _Reinhard Zumkeller_, May 13 2014