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A103040
as a simple table
n
a(n)
1
1
2
4
3
9
4
21
5
48
6
84
7
696
8
1489
9
4167
10
8400
11
52099
[1,4,9,21,48,84,696,1489,4167,8400,52099]
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Last modified April 24 15:18 EDT 2024. Contains 371960 sequences. (Running on oeis4.)