$m$ $\delta = 2$ $\delta = 3$ $\delta = 4$ $\delta = 5$ $\delta = 6$ $\delta = 7$ 26 22 0 - - - - 27 0 0 - - - - 28 1696 946 - - - - 29 0 220 - - - - 30 67682 128914 - - - -