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A 1-2 Number (Posted on 2024-07-07) Difficulty: 3 of 5
How many n digit numbers you can write by using only 1's and 2's and you are allowed to use neither two consecutive 1's nor three consecutive 2's?

No Solution Yet Submitted by Danish Ahmed Khan    
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  Subject Author Date
SolutionAnalytic SolutionBrian Smith2024-07-07 10:41:17
Puzzle ThoughtsK Sengupta2024-07-07 10:40:07
Solutioncomputer solutionCharlie2024-07-07 09:15:52
SolutionComputer SolutionLarry2024-07-07 08:23:32
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