# A179200 (b-file synthesized from sequence entry) 0 0 1 1 2 0 3 -6 4 60 5 -600 6 5880 7 -38640 8 -624960 9 45077760 10 -1773129600 11 58531809600 12 -1657462435200 13 33703750080000 14 171919752076800 15 -76383384045696000 16 6034124486347776000 17 -348318907415331840000 18 15862493882862941184000