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A109056 as a simple table

n a(n)
0 1
1 1
2 4
3 58
4 3236
5 713727
6 627642640
7 2205897096672
8 31004442653082720
9 1743005531132374350208

[1,1,4,58,3236,713727,627642640,2205897096672,
 31004442653082720,1743005531132374350208]

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Last modified May 30 12:03 EDT 2020. Contains 334724 sequences. (Running on oeis4.)