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A147003 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 7
6 21
7 77
8 479
9 3600
10 33995
11 482862
12 8547925
13 199841936
14 6379998757
15 265761442757
16 14715360146745 

[1,1,1,1,7,21,77,479,3600,33995,482862,8547925,
 199841936,6379998757,265761442757,14715360146745]

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Last modified October 3 11:38 EDT 2023. Contains 365861 sequences. (Running on oeis4.)