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A323919
as a simple table
n
a(n)
1
0
2
0
3
0
4
1
5
3
6
19
7
107
8
543
9
2709
10
13246
11
63918
12
306345
13
1461957
14
6959700
15
33092280
[0,0,0,1,3,19,107,543,2709,13246,63918,306345, 1461957,6959700,33092280]
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Last modified April 24 18:17 EDT 2024. Contains 371962 sequences. (Running on oeis4.)
