%I #8 Mar 29 2013 12:27:51
%S 0,1,2,4,4,4,4,7,8,4,4,8,12,14,12,15,16,4,4,8,12,16,10,24,26
%N Number of toothpicks or D-toothpicks added at n-th stage in the toothpick structure of A220526.
%C Essentially the first differences of A220526.
%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/To#toothpick">Index entries for sequences related to toothpick sequences</a>
%e Written as an irregular triangle begins:
%e 0;
%e 1;
%e 2;
%e 4,4;
%e 4,4,7,8;
%e 4,4,8,12,14,12,15,16;
%e 4,4,8,12,16,10,24,26,...
%Y Cf. A139250, A139251, A194271, A194441, A194443, A220501, A220521, A220523, A220526.
%K nonn,tabf,more
%O 0,3
%A _Omar E. Pol_, Jan 02 2013
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