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A338814 as a simple table

n a(n)
1 1
2 0
3 4
4 -6
5 48
6 0
7 1440
8 -10080
9 120960
10 0
11 7257600
12 -79833600
13 958003200
14 0
15 348713164800
16 -3923023104000
17 41845579776000
18 0
19 12804747411456000
20 -243290200817664000
21 9731608032706560000
22 0
23 2248001455555215360000
24 -103408066955539906560000

[1,0,4,-6,48,0,1440,-10080,120960,0,7257600,
 -79833600,958003200,0,348713164800,-3923023104000,
 41845579776000,0,12804747411456000,
 -243290200817664000,9731608032706560000,0,
 2248001455555215360000,-103408066955539906560000]

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Last modified September 16 19:27 EDT 2024. Contains 375977 sequences. (Running on oeis4.)