GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
gap4r8 / pkg / carat / carat-2.1b1 / tables / qcatalog / dim4 / dir.2-2;2-2 / ordnung.9 / (1)^1(3)^2(9)^1 / min.43
561074 views#g2 4 1 0 0 0 0 1 0 0 0 0 -1 1 0 0 -1 0 4 -1 1 0 0 -1 0 0 0 0 0 1 0 0 0 0 1 3^2 = 9 % order of the group