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15
Find all possible finite sequences {n_0,n_1,...,n_k}
Find all possible finite sequences {n_0,n_1,...,n_k}
Source:
October 5, 2010
combinatorics proposed
combinatorics
Problem Statement
Find all possible finite sequences
{
n
0
,
n
1
,
n
2
,
…
,
n
k
}
\{n_0, n_1, n_2, \ldots, n_k \}
{
n
0
,
n
1
,
n
2
,
…
,
n
k
}
of integers such that for each
i
,
i
i, i
i
,
i
appears in the sequence
n
i
n_i
n
i
times
(
0
≤
i
≤
k
)
.
(0 \leq i \leq k).
(
0
≤
i
≤
k
)
.
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