CISRA Puzzle Competition 2007 - Hints

This is the archive of the 2007 Puzzle Competition. Please visit the current competition site for information about the latest Puzzle Competition.

C.4 Formulaic

• The charts remind you of some familiar series from maths class.
• That kinda sorta almost looks like base 5... but something ain't right.
• Just between the Ð of us, the blackboard has a cosmic order to it. (Don't tell anyþ.)