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Sequence Problem

Started by Ender, April 27, 2007, 04:26:43 PM

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Ender

April 27, 2007, 04:26:43 PM
Sequence Problem (AACOPS):

Find the next member in this sequence.
1, 11, 21, 1211, 111221,....

rabbit

#1
April 27, 2007, 10:22:46 PM
312211

Ender

#2
April 28, 2007, 08:31:54 AM
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