The ornamental design for a stitchingpattern applied to a seat, as shown and described.
FIG. 1 is a perspective view of a stitching pattern applied to a seat; and,
FIG. 2 is a front view of the stitching pattern applied to a seat.
The broken line showing of the environment is for illustrative purposes
only and forms no part of the claimed design. The broken lines which
define the boundaries of the claimed design form no part thereof. The top,
bottom, and side views are not part of the claimed design.