$m$ $\delta = 2$ $\delta = 3$ $\delta = 4$ $\delta = 5$ $\delta = 6$ $\delta = 7$ 13 19 0 0 0 0 0 14 0 0 0 0 0 0 15 396 267 0 0 0 0 16 0 108 0 0 0 0 17 5768 14667 3310 0 0 0 18 232 9892 3540 0 0 0 19 66531 526587 348569 39326 0 0 20 9596 534106 525624 73716 0 0 21 658447 15681988 23408614 6944671 470991 0 22 202144 21890044 46395636 16627272 1275736 0 23 5894515 423798251 1299642891 767994261 129033850 5883901 24 2995896 756335696 3195791818 2235604108 417833868 20419732 25 49489794 10842464020 - - - - 26 35935328 23354245068 - - - - 27 399244291 268351067698 - - - - 28 376294192 667804349640 - - - - 29 3141942984 6500423848630 - - - - 30 3598237012 18087878452598 - - - -