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A309506
as a simple table
n
a(n)
1
1
2
1
3
1
4
2
5
5
6
12
7
30
8
86
9
253
10
748
11
2274
12
7152
[1,1,1,2,5,12,30,86,253,748,2274,7152]
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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)