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A243397
as a simple table
n
a(n)
1
0
2
1
3
3
4
21
5
145
6
273
7
1425
8
9613
9
15711
10
18445
[0,1,3,21,145,273,1425,9613,15711,18445]
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Last modified September 15 20:25 EDT 2024. Contains 375955 sequences. (Running on oeis4.)
