In creating database sequences, there is not a streamlined way to view database sequences that have been created. I have seen other posts of using Python to list database sequences, but that seems to only be applicable to file geodatabase and not enterprise databases.
List Database Sequences for Enterprise Geodatabase
Being able to view database sequences in a database would be beneficial, especially as these can interact with attribute rules to auto-generate values. Viewing along the same lines as you can for attribute rules, domains, subtypes, etc.