# A167568 (b-file synthesized from sequence entry) 1 1 2 0 3 2 4 2 5 -2 6 6 7 0 8 16 9 -16 10 24 11 24 12 -48 13 144 14 -120 15 120 16 0 17 432 18 -864 19 1392 20 -960 21 720 22 720 23 -2160 24 8208 25 -12816 26 14448 27 -8400 28 5040 29 0 30 23040 31 -69120 32 149760 33 -184320 34 161280 35 -80640 36 40320 37 40320 38 -161280 39 760320 40 -1716480 41 2684160 42 -2695680