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A293120 as a simple table

n a(n)
0 1
1 0
2 2
3 -6
4 36
5 -240
6 1920
7 -17640
8 183120
9 -2116800
10 26943840
11 -374220000
12 5628934080
13 -91122071040
14 1579034096640
15 -29155689763200
16 571308920582400
17 -11838533804697600
18 258608278645516800
19 -5938673374272038400
20 143003892952893772800

[1,0,2,-6,36,-240,1920,-17640,183120,-2116800,
 26943840,-374220000,5628934080,-91122071040,
 1579034096640,-29155689763200,571308920582400,
 -11838533804697600,258608278645516800,
 -5938673374272038400,143003892952893772800]

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Last modified April 18 13:10 EDT 2024. Contains 371780 sequences. (Running on oeis4.)