# A276998 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 1 4 12 5 6 6 -1 7 72 8 24 9 -24 10 1 11 1440 12 120 13 -960 14 200 15 37 16 43200 17 -9360 18 -44280 19 20640 20 3750 21 -1493 22 1814400 23 -997920 24 -2484720 25 2028600 26 271740 27 -378966 28 14017 29 25401600 30 -23042880 31 -42497280 32 54159840 33 3328080 34 -18236064 35 1977248 36 751267