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A370994 as a simple table

n a(n)
0 1
1 0
2 0
3 6
4 12
5 40
6 3060
7 23688
8 191520
9 9698400
10 158548320
11 2304973440
12 100716073920
13 2627516361600
14 58513944513024
15 2512156283683200
16 89046056086041600
17 2739316757454950400
18 124170651534918297600
19 5440968468533003212800
20 215067442349096186572800

[1,0,0,6,12,40,3060,23688,191520,9698400,
 158548320,2304973440,100716073920,2627516361600,
 58513944513024,2512156283683200,89046056086041600,
 2739316757454950400,124170651534918297600,
 5440968468533003212800,215067442349096186572800]

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Last modified May 14 17:00 EDT 2024. Contains 372533 sequences. (Running on oeis4.)