Monday, February 28, 2005

What's next?

I got this problem from Paul Zeitz book (The art and craft of problem solving).

What is the next member in this sequence?

1, 11, 21, 1211, 111221, ...
at

1 comment:

F said...

this could be a tune for all we know...hehehe. i once saw a problem that i thought was a math sequence but turns out it was the sequence of NY subway stations in street numbers.

12:46 PM

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