Many thanks for correcting me, having now looked at one of my opened packs properly I now understand what you intended and I see that it is a list of all "Full Moon" cards with every card numbered with a "1" or "6" at the end being the beginning of the next pack. However I see that the list misses cards 16-20. Were cards 16-20 ever issued.
Looking at my wrappers I see that four packs have an invitation to enrol in the Full Moon Fan Club for $20 whereas the other three packs have a blank space as the scan shown below.
Posts: 1726 | Location: United Kingdom | Registered: October 14, 2001