On certain $D(9)$ and $D(64)$ Diophantine triples

Benjamin Earp-Lynch, Simon Earp-Lynch, Omar Kihel

A set of $m$ distinct positive integers $\{a_1,\dots a_m\}$ is called a $D(q)$-$m$-tuple for nonzero integer $q$ if the product of any two increased by $q$, $a_i{a}_j+q$, $i\…