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A280767
as a simple table
n
a(n)
1
1
2
1
3
4
4
16
5
70
6
322
7
1556
8
39698
9
207217
[1,1,4,16,70,322,1556,39698,207217]
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Last modified April 24 19:06 EDT 2024. Contains 371962 sequences. (Running on oeis4.)
