Art of Problem Solving

2002 AMC 12A Problems/Problem 21: Revision history

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4 July 2013

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20 February 2009

  • curprev 07:3007:30, 20 February 2009 Misof talk contribs 1,676 bytes +1,676 New page: == Problem == Consider the sequence of numbers: <math>4,7,1,8,9,7,6,\dots</math> For <math>n>2</math>, the <math>n</math>-th term of the sequence is the units digit of the sum of the two ...