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Found problems: 1

2007 Gheorghe Vranceanu, 4
Tags: real analysis , cesaro-stolz , sequence , integral limit , function , integration , calculus
Let be a sequence $ \left( a_n \right)_{n\geqslant 1} $ of real numbers defined recursively as $$ a_n=2007+1004n^2-a_{n-1}-a_{n-2}-\cdots -a_2-a_1. $$ Calculate: $$ \lim_{n\to\infty} \frac{1}{n}\int_1^{a_n} e^{1/\ln t} dt $$