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A001185
as a simple table
n
a(n)
1
0
2
1
3
1
4
7
5
21
6
112
7
456
8
2603
9
13203
[0,1,1,7,21,112,456,2603,13203]
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Last modified May 6 16:31 EDT 2024. Contains 372296 sequences. (Running on oeis4.)
