2 problems

Let $k\geq 2$ and let $L$ be a regular language of base-$k$ representations of pairs whose quotient set is … A representation in $L$ is a word encoding a pair of nonnegative intege…

Let $T$ be the recurrence tree generated by the recurrence referred to as (Som4Ord3), and let the generalized Somos-4 sequence be the sequence associated with that recurrence. Prod…