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A080358 as a simple table

n a(n)
0 1
1 1
2 1
3 6
4 240
5 414720
6 4379443200
7 2648687247360000
8 11619303595714805760000
9 4047756373260469165621248000000
10 311107430628520522709128328175943680000000
11 152539657943794787580793302587123569672794931200000000 

[1,1,1,6,240,414720,4379443200,2648687247360000,
 11619303595714805760000,
 4047756373260469165621248000000,
 311107430628520522709128328175943680000000,
 15253965794379478758079330258712356967279493120000\
 0000]

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Last modified June 15 16:06 EDT 2024. Contains 373407 sequences. (Running on oeis4.)