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Omni-MATH / Does there exist an infinite set M consisting of positive integers such that for any a,b∈M, with a<b, the sum a+b is square-free? (A positive integer is called square-free if no pe…

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problem

Does there exist an infinite set MM consisting of positive integers such that for any a,b∈Ma, b \in M, with a<ba<b, the sum a+ba+b is square-free? (A positive integer is called square-free if no perfect square greater than 1 divides it.)
Plain-text mathematical notation (without MathML)
Does there exist an infinite set M consisting of positive integers such that for any a,b∈M, with a<b, the sum a+b is square-free? (A positive integer is called square-free if no perfect square greater than 1 divides it.)
Original LaTeX notation
Does there exist an infinite set $M$ consisting of positive integers such that for any $a, b \in M$, with $a<b$, the sum $a+b$ is square-free? (A positive integer is called square-free if no perfect square greater than 1 divides it.)

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