# A055135 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 -1 4 -2 5 1 6 -2 7 0 8 -6 9 1 10 -3 11 0 12 18 13 -12 14 1 15 -4 16 0 17 -40 18 80 19 -20 20 1 21 -5 22 0 23 75 24 -400 25 225 26 -30 27 1 28 -6 29 0 30 -126 31 1680 32 -1890 33 504 34 -42 35 1 36 -7 37 0 38 196 39 -6272 40 13230 41 -6272 42 980 43 -56 44 1 45 -8 46 0 47 -288 48 21504 49 -81648 50 64512 51 -16800 52 1728 53 -72 54 1 55 -9 56 0 57 405