Problem with Application Notifications in System Settings for Mac when I open Safari

When I open Safari and then look at Apple System Settings, then Notifications (App Notifications), I see websites that should not be there. When I turn off notifications for each one, they come back again when I restart my Mac and open Safari. They also show up in Safari Settings under Websites & Notifications. They all go away when I do a Clear History in Safari. But the next time I restart or turn on my Mac and open Safari, there they are again. The same exact ones, not different ones. I can't find these sites or suspicious apps anywhere. All the basic remedies don't work. These don't seem to be safe sites and might represent some sort of virus or malware, but I have not experienced any problems that I know of yet. I don't know how long I've had this problem as I just noticed this by chance recently. I did install Sequoia recently and am wondering if this is the problem? Any ideas?