A012360 - OEIS

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A012360 as a simple table

n	a(n)
0	1
1	0
2	0
3	0
4	-12
5	60
6	-570
7	3780
8	-26880
9	145152
10	67800
11	-19702320
12	483806664
13	-8808530016
14	143791860576
15	-2098017710880
16	26000312931840
17	-200354333649536
18	-2365679417115840
19	173236427161446528

[1,0,0,0,-12,60,-570,3780,-26880,145152,67800, -19702320,483806664,-8808530016,143791860576, -2098017710880,26000312931840,-200354333649536, -2365679417115840,173236427161446528]