# A287314 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 0 4 -1 5 2 6 0 7 4 8 -9 9 6 10 0 11 -33 12 82 13 -72 14 24 15 0 16 456 17 -1225 18 1250 19 -600 20 120 21 0 22 -9460 23 27041 24 -30600 25 17700 26 -5400 27 720 28 0 29 274800 30 -826336 31 1011017 32 -661500 33 249900 34 -52920 35 5040 36 0 37 -10643745 38 33391954 39 -43471624 40 31149496 41 -13524000 42 3622080 43 -564480 44 40320