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A345022 as a simple table

n a(n)
2 3
3 4
4 30
5 12
6 0
7 120
8 1260
9 840
10 0
11 2520
12 0
13 27720
14 0
15 0
16 6126120
17 720720
18 0
19 12252240
20 0
21 0
22 0
23 232792560
24 0
25 5354228880
26 0
27 26771144400
28 0
29 80313433200
30 0
31 4658179125600
32 72201776446800
33 0
34 0
35 0
36 0
37 144403552893600
38 0
39 0
40 0
41 5342931457063200
42 0

[3,4,30,12,0,120,1260,840,0,2520,0,27720,0,0,
 6126120,720720,0,12252240,0,0,0,232792560,0,
 5354228880,0,26771144400,0,80313433200,0,
 4658179125600,72201776446800,0,0,0,0,
 144403552893600,0,0,0,5342931457063200,0]

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Last modified August 13 00:55 EDT 2024. Contains 375113 sequences. (Running on oeis4.)