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19
2015 Guts #19
2015 Guts #19
Source:
July 28, 2022
2015
Guts Test
Problem Statement
Compute the number of
0
≤
n
≤
2015
0\leq n\leq2015
0
≤
n
≤
2015
such that
6
n
+
8
n
6^n+8^n
6
n
+
8
n
is divisible by
7
7
7
.
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