# A113216 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 1 4 -6 5 -12 6 1 7 12 8 -60 9 -120 10 1 11 -20 12 -180 13 840 14 1680 15 1 16 30 17 -420 18 -3360 19 15120 20 30240 21 1 22 -42 23 -840 24 10080 25 75600 26 -332640 27 -665280 28 1 29 56 30 -1512 31 -25200 32 277200 33 1995840 34 -8648640 35 -17297280 36 1 37 -72 38 -2520 39 55440 40 831600 41 -8648640 42 -60540480 43 259459200 44 518918400 45 1 46 90 47 -3960 48 -110880