OFFSET
0,3
COMMENTS
For the D-toothpick "narrow" triangle of the second kind see A194442.
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]
LINKS
CROSSREFS
KEYWORD
nonn
AUTHOR
Omar E. Pol, Aug 29 2011
STATUS
approved