# A204024 (b-file synthesized from sequence entry) 1 1 2 -1 3 2 4 -4 5 1 6 6 7 -16 8 10 9 -1 10 24 11 -76 12 70 13 -20 14 1 15 120 16 -428 17 496 18 -224 19 35 20 -1 21 720 22 -2808 23 3808 24 -2260 25 588 26 -56 27 1 28 5040 29 -21096 30 32152 31 -23008 32 8140 33 -1344 34 84 35 -1 36 40320 37 -178848 38 298688 39 -245560 40 107328 41 -24772 42 2772