I suspect the boring/logical answer is something along the lines of "human beings are designed/wired to see patterns, and that it's something we've evolved to do.

It's still really early in the morning and I'm struggling to put sentences together, so here is the quick AI answer when I searched google:

Humans are hardwired to detect patterns as a core feature of brain function, driven by evolutionary advantages. This tendency, known as patternicity or apophenia, helps us make sense of complex environments by identifying meaningful structures in sensory input. The neocortex, the brain’s most evolved region, continuously processes information to recognize patterns, even in randomness—such as seeing faces in clouds (pareidolia) or interpreting coincidences as meaningful connections.

This pattern-seeking behavior provided survival benefits: misidentifying a rustle as a predator (false positive) was less dangerous than missing a real threat (false negative). As a result, those who detected patterns—whether in animal tracks, weather signs, or social cues—were more likely to survive and pass on their genes. Today, this trait aids in learning, memory, and decision-making but can also lead to cognitive biases like conspiracy theories, superstitions, and confirmation bias.

So I guess sometimes patterns are meaningful, and other times they are just coincidence, sometimes it's hard to tell the difference!

All that stuff aside, I love noticing patterns like this, especially with numbers. I like it when numbers repeat eg £17.17 or £202.02 and also when they are in a sequence, like when I'm on my lunch break and my digital watch says 12:34:56. I don't think it means anything, but spotting patterns like this makes me smile 🙂