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Kosovo MO 2012 Grade 12, Problem 3
Kosovo MO 2012 Grade 12, Problem 3
Source: Kosovo MO 2012 Grade 12, Problem 3
June 7, 2021
algebra
Problem Statement
Solve the recurrence
R
0
=
1
,
R
n
=
n
R
n
−
1
+
2
n
⋅
n
!
R_0=1, R_n=nR_{n-1}+2^n\cdot n!
R
0
=
1
,
R
n
=
n
R
n
−
1
+
2
n
⋅
n
!
.
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