# A028976 (b-file synthesized from sequence entry) 0 1 1 0 2 120 3 240 4 600 5 1440 6 2400 7 3120 8 5400 9 7200 10 12360 11 12000 12 18720 13 20640 14 28800 15 39120 16 43800 17 45120 18 62040 19 62400 20 102120 21 88800 22 111840 23 113040 24 151200 25 174240 26 181200 27 189600 28 231360 29 225600 30 350880 31 276000 32 343320 33 343680 34 409200 35 479760 36 511800 37 465120 38 573600 39 568800 40 815400 41 636000