# A175816 (b-file synthesized from sequence entry) 1 -1 2 0 3 -1 4 0 5 1 6 0 7 -1 8 -2 9 -1 10 0 11 -1 12 0 13 -1 14 0 15 -1 16 0 17 1 18 2 19 3 20 4 21 5 22 6 23 5 24 6 25 7 26 8 27 7 28 8 29 7 30 8 31 7 32 8 33 7 34 8 35 7 36 6 37 5 38 4 39 5 40 6 41 5 42 6 43 5 44 4 45 3 46 2 47 3 48 4 49 3 50 2 51 3 52 4 53 5 54 6 55 7 56 6 57 5 58 4 59 5 60 6 61 7 62 8 63 9 64 10 65 9 66 10 67 9 68 10 69 11 70 12 71 13 72 14 73 15 74 16 75 15 76 16 77 15 78 16 79 17 80 18 81 19 82 18 83 17 84 18 85 17 86 18 87 19 88 18 89 19