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1999 Harvard-MIT Mathematics Tournament
7
1999 Oral #7: Powers on Factorials
1999 Oral #7: Powers on Factorials
Source:
October 20, 2012
factorial
Problem Statement
Evaluate
∑
n
=
1
∞
n
5
n
!
.
\sum_{n=1}^\infty \dfrac{n^5}{n!}.
∑
n
=
1
∞
n
!
n
5
.
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