GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
gap4r8 / pkg / carat / carat-2.1b1 / tables / qcatalog / dim6 / dir.2-1',2-1';1;1 / ordnung.4 / (2)^2(16)^2 / min.203
561086 views#g1 6 0 1 0 0 0 0 -1 0 0 0 0 0 0 0 0 -1 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 -1 2^2 = 4 % order of the group