$m$ $\delta = 2$ $\delta = 3$ $\delta = 4$ $\delta = 5$ $\delta = 6$ $\delta = 7$ 17 27 0 0 0 0 0 18 0 0 0 0 0 0 19 804 501 0 0 0 0 20 0 156 0 0 0 0 21 16496 36987 7708 0 0 0 22 336 19688 6468 0 0 0 23 259751 1726311 1027989 107366 0 0 24 19652 1401026 1248612 161960 0 0 25 3379115 64418512 - - - - 26 576056 73175604 - - - - 27 38269747 2107668193 - - - - 28 11516392 3127726016 - - - - 29 391793158 63373541574 - - - - 30 179627912 116278758388 - - - -