Which sequence is associated with the 5 new Arctic Ocean NAVAREAs?

The sequence associated with the new Arctic Ocean NAVAREAs is indeed NAVAREA XVIII, NAVAREA XX, and NAVAREA XXI. This is correct because these specific NAVAREAs have been designated to enhance safety and navigation in the Arctic region, which has been experiencing increased maritime activity due to changing climate conditions and shipping routes. Each NAVAREA is a defined maritime area for the purpose of publishing navigational information, ensuring vessels operating in these waters receive timely and accurate warnings about navigational hazards, weather updates, and other critical information.

The other sequences do not represent the new Arctic Ocean NAVAREAs. They include NAVAREAs that are relevant to different regions or existing navigational structures that do not pertain to the Arctic, thus not serving the intended purpose of navigation safety in the newly defined Arctic waters.