Thanks! Figure 5 of Sikiric’s arXiv article is exactly the kind of tiling I wanted. (But I think the first translation vector shown at the left of the figure is wrong; does anyone else think so too?) Jim Propp On Sunday, July 8, 2018, Stuart Anderson <stuart.errol.anderson@gmail.com> wrote:

I've sent an email to Geoffrey with your question.

Some more references:

Grunbaum and Shepard dealt with the cases of two and some of three squares in 'Tilings and Patterns'

These papers find all the cases with 3 squares

https://www.infona.pl/resource/bwmeta1.element. springer-dd723cfe-ddc9-39d5-a77d-486b621acafd

https://arxiv.org/pdf/1101.0223

http://emis.ams.org/journals/BAG/vol.41/no.1/23.html _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun