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A145964 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 25
6 173
7 1794
8 20685
9 319727
10 6676539
11 232552310
12 11372993795 

[1,1,1,1,25,173,1794,20685,319727,6676539,
 232552310,11372993795]

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Last modified May 19 14:45 EDT 2024. Contains 372698 sequences. (Running on oeis4.)