$m$ $\delta = 2$ $\delta = 3$ $\delta = 4$ $\delta = 5$ $\delta = 6$ $\delta = 7$ 15 23 0 0 0 0 0 16 0 0 0 0 0 0 17 582 375 0 0 0 0 18 0 132 0 0 0 0 19 10196 24147 5206 0 0 0 20 284 14374 4900 0 0 0 21 138731 996532 621261 67081 0 0 22 14176 899086 836946 112320 0 0 23 1583781 33394122 46294451 13027421 846608 0 24 356664 41873962 83056140 28306838 2086788 0 25 15998341 995892731 - - - - 26 6193992 1616606484 - - - - 27 148429584 27657829123 - - - - 28 85192508 54932969900 - - - - 29 1298770487 733287826193 - - - - 30 1002009628 1705621594848 - - - -