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Baltic Way
2009 Baltic Way
9
9
Part of
2009 Baltic Way
Problems
(1)
Simple difference of two squares problem
Source: Baltic Way 2009
11/27/2010
Determine all positive integers
n
n
n
for which
2
n
+
1
ā
n
2
2^{n+1}-n^2
2
n
+
1
ā
n
2
is a prime number.
modular arithmetic
inequalities
number theory proposed
number theory