The ornamental design for a mahjonggtable, as shown and described.
FIG. 1 is a perspective view of a mah jongg table according to the invention, the table legs being shown in dashed lines as not being a part of the invention.
FIG. 2 is a top plan view of the mah jongg table of FIG. 1; and,
FIG. 3 is a front elevation view of the mah jongg table of FIG. 1, the rear and side elevations thereof being substantially equal.