# A334689 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 9 5 2 6 1 7 49 8 72 9 6 10 1 11 225 12 1250 13 600 14 24 15 1 16 961 17 16200 18 25350 19 5400 20 120 21 1 22 3969 23 181202 24 735000 25 470400 26 52920 27 720 28 1 29 16129 30 1866312 31 17360406 32 26460000 33 8490720 34 564480 35 5040 36 1 37 65025 38 18301250 39 362237400 40 1159593624 41 840157920 42 153679680 43 6531840 44 40320