Word meaning coincidence of reference to the unusual
I think you might be thinking of synchronicity.
As others note, some call it the Baader-Meinhof phenomenon and it is somewhat close to synchronicity. It is also related to the recency effect. The psychological term for it seems to be the primacy effect or priming
It's called the Baader-Meinhof Phenomenon. Read more on Damn Interesting.
That would be a form of confirmation bias. "Synchronicity" is a pop-psychology term.
The "official" term is "frequency illusion."