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A049366
as a simple table
n
a(n)
1
0
2
0
3
1
4
3
5
7
6
36
7
221
8
2184
9
26985
10
395877
11
6362861
12
108791383
[0,0,1,3,7,36,221,2184,26985,395877,6362861, 108791383]
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Last modified April 25 16:23 EDT 2024. Contains 371989 sequences. (Running on oeis4.)