%I #5 Apr 02 2016 21:26:41
%S 0,2,4,7,12,7,12,15,20,7,12,15,20,15,28,39,36,7,12,15,20,15,28,39,36,
%T 15
%N First differences of A267698.
%C Number of Q-toothpicks added at n-th stage in the Q-toothpick structure of A267698.
%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>
%H <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a>
%H <a href="/index/To#toothpick">Index entries for sequences related to toothpick sequences</a>
%e When the positive terms are written as an irregular triangle in which the row lengths are the terms of A011782 the sequence begins:
%e 2;
%e 4;
%e 7, 12;
%e 7, 12, 15, 20;
%e 7, 12, 15, 20, 15, 28, 39, 36;
%e 7, 12, 15, 20, 15, 28, 39, 36, 15,...
%Y Cf. A011782, A187210, A187211, A267695, A267698.
%K nonn,tabf,more
%O 0,2
%A _Omar E. Pol_, Apr 02 2016
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