# A347979 (b-file synthesized from sequence entry) 1 2 2 6 3 60 4 120 5 360 6 840 7 3360 8 2520 9 5040 10 10080 11 15120 12 32760 13 27720 14 50400 15 98280 16 83160 17 110880 18 138600 19 221760 20 277200 21 332640 22 360360 23 554400 24 960960 25 831600 26 942480 27 720720 28 2217600 29 1965600 30 1441440