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9
2017 Discrete #9
2017 Discrete #9
Source:
October 12, 2022
2017
Discrete Math Test
Problem Statement
Compute the number of positive integers
n
≤
1330
n\leq1330
n
≤
1330
for which
(
2
n
n
)
\tbinom{2n}{n}
(
n
2
n
)
is not divisible by
11
11
11
.
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