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Using the optimized methods in a recent work of Browning, Lichtman and Ter\\\"av\\\"ainen, we showed that the number of those triples with $c \\leqslant X$ is $O\\left(X^{56/85+\\varepsilon}\\right)$ for any $\\varepsilon > 0$, where $\\frac{56}{85} \\approx 0.658824$. 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Using the optimized methods in a recent work of Browning, Lichtman and Ter\\\"av\\\"ainen, we showed that the number of those triples with $c \\leqslant X$ is $O\\left(X^{56/85+\\varepsilon}\\right)$ for any $\\varepsilon > 0$, where $\\frac{56}{85} \\approx 0.658824$. 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