%I #3 Mar 30 2012 18:51:20
%S 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,
%T 0,1,0,1,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,5,6,7,
%U 0,1,2,3,0,1,2,3,0,0,0,1,1,0,0,0,0,0,0,0,0,0,1,0,1,0,3,2,2,3,0,1,0,1,0,0,0
%N Fourth derivative of n.
%F a(n)=A038554(A038554(A038554(A038554(n))))=A038570(A038570(n))
%Y Cf. A038554, A038570, A038571.
%K nonn
%O 0,33
%A _Henry Bottomley_, May 11 2000
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