The object "Sequence" cannot be made visible to the API
Reproducing the Issue
Go To Admin Center -> Configure Object Definitions -> Sequence and verify the "API Visibility: Not Visible". This cannot be changed.
For this case, changing from the UI is not allowed by design. The Engineering Team cannot change this setting so for the "Sequence" object, the KBA "2301829 - Cannot change API Visibility in system defined object definition" isn't applicable and a request can't be made.
This is the expected behaviour.
KBA 2301829 - Cannot change API Visibility in system defined object definition