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A268569
as a simple table
n
a(n)
1
0
2
0
3
1
4
1
5
2
6
6
7
19
8
74
9
320
10
1469
[0,0,1,1,2,6,19,74,320,1469]
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Last modified April 18 16:22 EDT 2024. Contains 371780 sequences. (Running on oeis4.)
