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%I #27 Mar 11 2014 01:34:18
%S 0,1,3,7,11,15,19,27,35,39,43,51,63,79,87,103,119,123,127,135,147,163,
%T 179,203,229,253,265,285,313,353,373,405,437,441,445,453,465,481,497,
%U 521,547,571,591,623,663,727,767,815,869,909,921,941,973,1021
%N Number of toothpicks and D-toothpicks after n-th stage in the D-toothpick "wide" triangle of the second kind.
%C For the D-toothpick "narrow" triangle of the second kind see A194442.
%C The structure is essentially one of the wedges of several D-toothpick structures. For more information see A194270. The first differences (A194441) give the number of toothpicks or D-toothpicks added at n-th stage. [_Omar E. Pol_, Dec 29 2012]
%H Omar E. Pol, <a href="http://www.polprimos.com/imagenespub/poltp062.jpg">Illustration of the structure after 32 stages</a>
%H Omar E. Pol, <a href="http://www.polprimos.com/imagenespub/poltp063.jpg">Illustration of the structure after 64 stages</a>
%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>
%Y Cf. A139250, A160120, A160406, A161830, A194270, A194277, A194441, A194442, A194444, A194692, A194693, A194696, A220494, A220520.
%K nonn
%O 0,3
%A _Omar E. Pol_, Aug 29 2011
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