Show Hint (added 2006-10-20)
It is a rather basic puzzle.
Addendum (2006-10-20): An excellent place to find answers to questions like these is The On-Line Encyclopedia of Integer Sequences
Wei-Hwa's Puzzle Module for October 19th, 2006
Show Hint (added 2006-10-20)
It is a rather basic puzzle.
Addendum (2006-10-20): An excellent place to find answers to questions like these is The On-Line Encyclopedia of Integer Sequences