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A156832 as a simple table

n a(n)
1 1
2 1
3 1
4 3
5 24
6 90
7 720
8 2520
9 10080
10 120960
11 604800
12 5913600
13 79833600
14 691891200
15 15567552000
16 65383718400
17 1307674368000
18 11115232128000
19 66691392768000
20 1187940433680000
21 79829597143296000
22 3568256278659072000

[1,1,1,3,24,90,720,2520,10080,120960,604800,
 5913600,79833600,691891200,15567552000,
 65383718400,1307674368000,11115232128000,
 66691392768000,1187940433680000,79829597143296000,
 3568256278659072000]

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)