I read a short story about a number between (IIRC) three and four being disappeared by a conspiracy. The short story revolves (again, IIRC but not that important) around the death of person (possibly scientist) having made the discovery, being harrassed and subsequently killed or gone missing. The police officer in charge wasn't believing its story but subsequently the theory grew on him. While trying to explain it to his teammate, one of them drops three matches on a table to make a point,
then later one of them goes on to light a cigarette with one of them, and to the reader's (or his?) surprise three matches are still on the table.
I just can't even remember if I read that on the web or in a book.