All non-isomorphic OA(24,7,2,3)s, their GWPs and GMA ordering (.n means that the design ranks number n in the GMA ordering):

Orthogonal Array             GWP and GMA Ordering
OA(24,7,2,3).1                (0, 0, 0, 3.888889, 0, 0.444444, 0).1