Towers of Hanoi

I am reliably informed (by a computer scientist)

that "Towers of Hanoi" is a conundrum of

intense interest to computer science and

of trifling interest to any other discipline.

So if computer science has an

intellectual homeland, then the

Towers of Hanoi are the homeland's

towers.

http://www.cut-the-knot.org/recurrence/hanoi.shtml

Wow! That sure is recurrent, recursive, and iterative!