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A333391
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Longest side of primitive integer triangles with nonzero rational distances between three vertices and first isogonic center, sorted.
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1
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73, 95, 152, 205, 208, 280, 285, 287, 296, 343, 361, 387, 407, 437, 469, 473, 485, 497, 507, 608, 624, 633, 645, 713, 715, 728, 728, 817, 873, 931
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OFFSET
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1,1
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LINKS
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EXAMPLE
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Case 1: When the isogonic center is inside the triangle, i.e., the three internal angles are all less than 120 degrees: Example: Length of three sides (a, b, c) = (57, 65, 73), rational distances with signs (x, y, z) = (325/7, 264/7, 195/7);
Case 2: When the isogonic center is outside the triangle, i.e., an internal angle is greater than 120 degrees. Example: Lengths of three sides (a, b, c) = (43, 248, 285), rational distances with signs (x, y, z) = (1800/7, 345/7, -136/7);
Thus 73 and 285 are in this sequence.
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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