# A163945 (b-file synthesized from sequence entry) 0 1 1 -1 2 6 3 1 4 -12 5 30 6 -1 7 18 8 -90 9 140 10 1 11 -24 12 180 13 -560 14 630 15 -1 16 30 17 -300 18 1400 19 -3150 20 2772 21 1 22 -36 23 450 24 -2800 25 9450 26 -16632 27 12012 28 -1 29 42 30 -630 31 4900 32 -22050 33 58212 34 -84084 35 51480 36 1 37 -48 38 840 39 -7840 40 44100 41 -155232 42 336336 43 -411840 44 218790