Who knows three hundred forty two?
שנים וארבעים ושלוש מאות - מי יודע?
The traditional Passover song "Echad - mi yodeya" implies a possible presupposition that there is a Jewish significance to be found for each natural number. Accordingly, there is an ongoing series on Mi Yodeya that is attempting to unearth significant Judaism facts about each number, in sequence.
What significant Judaism facts are there about the number 342? The more significant within Judaism and the more intrinsically dependent on the value 342, the stronger the answer. Please include sources for your information wherever possible, as with all other answers on this site.
Please don't cause anything with the name or scent of lazy gematria to blow through as an answer.