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A180751 as a simple table

n a(n)
1 0
2 1
3 1
4 9
5 86
6 2986
7 205020
8 33329847
9 11843513563
10 9371551715962
11 16360949033733903 

[0,1,1,9,86,2986,205020,33329847,11843513563,
 9371551715962,16360949033733903]

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Last modified April 19 16:03 EDT 2024. Contains 371794 sequences. (Running on oeis4.)