Paul,
I have recently learned to play Pan. I play in a home game every weekend and have played it a few times at the Plaza. The Plaza is the only place in Las Vegas that still spreads Pan.
Panguingue, also known as Pan for short, is a gambling Rummy game which is popular in the southwest USA. From four to eight players can take part in one game. It is played with eight decks of standard cards from which the 8's, 9's and 10's have been removed - 320 cards altogether. Often the odds are changed by removing one complete set of spades, leaving 310 cards. Sometimes the 3, 5 and 7 and occasionally the 2 and queen from a second set of spades are also removed, leaving a pack of 307 or 305 cards.
Details can be found by clicking here: http://www.pleasurepanpalace.com/thegames/pan.html