Seeing Numbers Composed of Consecutive Digits

It means when you see a number composed of consecutive digits, you make a mental note of it. Because you make a mental not of it, you are more likely to remember seeing it.

Because you don't remember seeing the many other numbers you see, there is a tendency to think the ones you remember are the only ones seen.

Now, when a person wonders if there is a special meaning associated with noting and remembering certain numbers, then the number or type of number is vested with significance. That makes it even more likely the person will give special attention to the number when it is in their environment, resulting in the person remembering the seeing of the number even more often.

The Why You Start Seeing Certain Numbers Again and Again and Why People See Certain Numbers All the Time articles talk about this.