### Alexander Bogomolny

Shared publicly -Assume a_1,a_2,a_3,a_4 are intgegers and a_{a_n}}=n+4.

Find a_{2012}+a_{2013}+a_{2014}+a_{2015}

http://www.cut-the-knot.org/arithmetic/algebra/InnovativeRecurrence.shtml

Find a_{2012}+a_{2013}+a_{2014}+a_{2015}

http://www.cut-the-knot.org/arithmetic/algebra/InnovativeRecurrence.shtml

1

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