"The Numbers" of 'Lost', specifically the numeral "23", got a double-shot appearance in the 'Poirot' mystery "The Alphabet Murders".
The murders were taking place in August of 1936, and Inspector Japp held a strategy session to plan their next move on the 23rd:
And after examining the crime scene in Andover, Hercule Poirot and Captain Hastings took the train back to London:
Now that track designation might not seem like much for making a connection to "The Numbers", but in my travels the tracks on either side of a platform would have been numbered "1 & 2" or "1 & 3". Track #1 had its own location away from the others at this station?
And if it still seems like a stretch to claim it's "The Numbers" at work, remember they've had some flimsy uses in 'Lost' itself. Biggest example of this would be in the toy store where Locke worked - regulation footballs were in Aisle 8 while Nerf footballs were in Aisle 15 ("Deus Ex Machina"). Wouldn't it have made more sense if they were in the same aisle?