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A292790
as a simple table
n
a(n)
1
1
2
1
3
1
4
2
5
4
6
9
7
22
8
60
9
174
10
534
11
1720
12
5767
13
20013
14
71545
[1,1,1,2,4,9,22,60,174,534,1720,5767,20013,71545]
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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)