Part of an infinite series, where most tilings in this series are not flc, this one is the exception.
The reason is that the inflation factor is a - real - PV number.
By an argument in [PR] this forces flc.
Interestingly, the shape of the tiles can vary.
That is, there is one free parameter $l$
, $0 < l < 1+s$
, and the smallest prototile is the triangle with sides $1,s,l$
($s$
the largest root of $x^{3}-x-1$
).
In particular, one can have obtuse triangles, as well as rectangular ones or acute ones as prototiles.
[PR]
Priebe-Frank, N and Robinson, E A jr
Generalized beta-expansions, substitution tilings, and local finiteness
preprint
A0506098