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A013334 as a simple table

n a(n)
0 0
1 1
2 0
3 0
4 -4
5 0
6 0
7 0
8 -1104
9 -5040
10 0
11 184800
12 -1784704
13 -39948480
14 -201801600
15 2969366400
16 24788541696
17 -621491320320
18 -12903078988800
19 20131497484800
20 2944178363780096
21 8434762785469440
22 -1051002016730265600
23 -14118259471683840000
24 255660771276061802496

[0,1,0,0,-4,0,0,0,-1104,-5040,0,184800,-1784704,
 -39948480,-201801600,2969366400,24788541696,
 -621491320320,-12903078988800,20131497484800,
 2944178363780096,8434762785469440,
 -1051002016730265600,-14118259471683840000,
 255660771276061802496]

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Last modified October 26 05:58 EDT 2021. Contains 348257 sequences. (Running on oeis4.)