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A093456 as a simple table

n a(n)
1 1
2 1
3 24
4 720
5 2520
6 120960
7 259459200
8 1357171200
9 4929724800
10 42608389824000
11 11912739135897600
12 59907396092544000
13 20458385028297216000
14 7926428532945162240000
15 4693751193479184764928000
16 328774885640356760904499200000
17 12797917159224592605450240000

[1,1,24,720,2520,120960,259459200,1357171200,
 4929724800,42608389824000,11912739135897600,
 59907396092544000,20458385028297216000,
 7926428532945162240000,4693751193479184764928000,
 328774885640356760904499200000,
 12797917159224592605450240000]

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Last modified December 3 00:59 EST 2021. Contains 349445 sequences. (Running on oeis4.)