To find a tiling pattern, fill in the properties you are sure about. Leave to ones you are unclear about blank (in the case of the symmetry group, give this as unknown).
The properties which are less important appear later in this list. Once you get to those of no interest, go to the end and click on the submit button.
v54
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));