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International Contests
Baltic Way
2022 Baltic Way
2
2
Part of
2022 Baltic Way
Problems
(1)
Sequence with floor
Source: Baltic Way 2022, Problem 2
11/12/2022
We define a sequence of natural numbers by the initial values
a
0
=
a
1
=
a
2
=
1
a_0 = a_1 = a_2 = 1
a
0
=
a
1
=
a
2
=
1
and the recursion
a
n
=
⌊
n
a
n
−
1
a
n
−
2
a
n
−
3
⌋
a_n = \bigg \lfloor \frac{n}{a_{n-1}a_{n-2}a_{n-3}} \bigg \rfloor
a
n
=
⌊
a
n
−
1
a
n
−
2
a
n
−
3
n
⌋
for all
n
≥
3
n \ge 3
n
≥
3
. Find the value of
a
2022
a_{2022}
a
2022
.
algebra