# A078991 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 0 4 1 5 -2 6 0 7 -6 8 -2 9 6 10 0 11 36 12 24 13 12 14 -24 15 0 16 -240 17 -240 18 -240 19 -72 20 120 21 0 22 1800 23 2400 24 3600 25 2160 26 600 27 -720 28 0 29 -15120 30 -25200 31 -50400 32 -45360 33 -25200 34 -5760 35 5040 36 0 37 141120 38 282240 39 705600 40 846720 41 705600 42 322560 43 65520