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%I #6 Feb 24 2021 02:48:19
%S 4,0,12,-12,20,-8,44,-56,20,0,60,-68,68,-24,156,-212,20,0,60,-60,100,
%T -40,220,-288,68,0,204,-228,244,-88,556,-768,20,0,60,-60,100,-40,220,
%U -280,100,0,300,-340,340,-120,780,-1068,68,0,204,-204,340,-136,748,-976,244,0,732,-820,868,-312,1980,-2748
%N First differences of A072272.
%H David Applegate, Omar E. Pol and N. J. A. Sloane, <a href="/A000695/a000695_1.pdf">The Toothpick Sequence and Other Sequences from Cellular Automata</a>, Congressus Numerantium, Vol. 206 (2010), 157-191. [There is a typo in Theorem 6: (13) should read u(n) = 4.3^(wt(n-1)-1) for n >= 2.]
%H N. J. A. Sloane, <a href="/wiki/Catalog_of_Toothpick_and_CA_Sequences_in_OEIS">Catalog of Toothpick and Cellular Automata Sequences in the OEIS</a>
%K sign
%O 0,1
%A _N. J. A. Sloane_, Jan 07 2010, Apr 17 2010
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