perplexus.info :: Numbers : Choose your neighbor

Choose your neighbor (Posted on 2010-04-23)

How many 12-digit binary sequences exist with no two ones(11) neighboring each other?.
How many 12-digit binary sequences exist with no 3 ones(111) neighboring each other?.
Leading zeros allowed.

No Solution Yet Submitted by Ady TZIDON

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Subject	Author	Date
re: Structure /corrected (spoiler)	Ady TZIDON	2010-04-23 21:16:19
semi-analytic solution	Charlie	2010-04-23 14:06:46
Structure	Jer	2010-04-23 13:31:07

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