%I
%S 0,1,3,7,11,15,19,26,34,38,42,50,62,70,78,91,107,111,115,123,135,151,
%T 167,187,211,223,231,247,275,291,307,332,364,368,372,380,392,408,424,
%U 446,478,504,524,548,588,620,660,701,749,769,777
%N Number of toothpicks and Dtoothpicks after nth stage in the Dtoothpick "narrow" triangle of the third kind.
%C The structure is essentially one of the oblique wedges of several Dtoothpick structures. For more information see A220500. First differs from A194442 at a(47). The first differences (A220523) give the number of toothpicks or Dtoothpicks added at nth stage.
%H Omar E. Pol, <a href="http://www.polprimos.com/imagenespub/poltp064.jpg">Illustration of the structure after 32 stages</a>
%H Omar E. Pol, <a href="http://www.polprimos.com/imagenespub/poltp068.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. A047999, A139250, A194270, A194700, A194440, A194442, A194444, A220496, A220500, A220523.
%K nonn
%O 0,3
%A _Omar E. Pol_, Dec 15 2012
