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A216818
as a simple table
n
a(n)
4
1
5
0
6
2
7
4
8
12
9
32
10
110
11
340
12
1193
13
4080
14
14786
15
53428
[1,0,2,4,12,32,110,340,1193,4080,14786,53428]
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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)