# A130273 (b-file synthesized from sequence entry) 1 1 2 4 3 2 4 9 5 24 6 5 7 20 8 84 9 54 10 132 11 15 12 35 13 240 14 320 15 630 16 780 17 720 18 52 19 66 20 570 21 870 22 2280 23 465 24 6240 25 4440 26 1320 27 8280 28 4050 29 203 30 105 31 1260 32 1974 33 6720 34 2394 35 20580 36 19740 37 14385 38 11445 39 83160 40 31080 41 34860 42 77910 43 23772 44 877 45 176 46 2520 47 4312 48 17640 49 5432