OFFSET
0,4
COMMENTS
These numbers were computed using the TilingCount program of David Desjardins. Stones are also called T_2 tiles and bones are also called L_3 tiles.
LINKS
James Propp, The Benzel Tilings Site
FORMULA
a(n)=0 when n is congruent to 1 mod 3, since in that case the number of cells in the n-triangle is not divisible by 3.
EXAMPLE
For n=3 the three tilings are
A
A A
B B B
and
A
A B
A B B
and
A
B A
B B A
CROSSREFS
KEYWORD
nonn,more
AUTHOR
James Propp, Oct 23 2024
STATUS
approved