Actually, it's fairly common to notice ordered numbers like 1-2-3-4.

It's not coincidence, the same numbers are in the environment of everybody else. It's just that you notice them more than others do.

Maybe your mind is more orderly than some of those who don't see the numbers. Not that orderliness is a criterial, other orderly minds might be attracted to noticing other things that are orderly.

Your name number is a 7, which tells me you would assign significance to the frequent seeing of the number more readily than some other name numbers would, like the 5 for example (which really couldn't care less about it).

Although not a coincidence, it's nothing to worry about. You just happen to notice the series of number more often than other people do.