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A Surprising Sequence

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Author: Steve Risberg
Description: teacher support active problem Algebra, difficulty level 2. In a Fibonacci sequence, the first number is 1 and the tenth number is 111. Find the second number.
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Problem page: http://mathforum.org/librarypow/puzzles/index2.ehtml?puzzle=3244
Support page: http://mathforum.org/pow/support/algpow/20041018alg.teacher.html
Solution page: Problem #3244

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