# A142146 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 1 5 6 6 24 7 22 8 8 9 1 10 24 11 144 12 260 13 176 14 62 15 12 16 1 17 120 18 960 19 2640 20 3120 21 1846 22 616 23 126 24 16 25 1 26 720 27 7200 28 26760 29 47040 30 43352 31 23376 32 7772 33 1632 34 222 35 20 36 1 37 5040 38 60480 39 283920 40 672000 41 882336 42 692160 43 347152 44 115680 45 25806 46 3800 47 366 48 24 49 1