A080325 - OEIS

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A080325 as a simple table

n	a(n)
0	0
1	1
2	12
3	320
4	16128
5	1382400
6	186802176
7	37571788800
8	10752302776320
9	4222605695385600
10	2209155036594831360
11	1502185604799843532800
12	1300250162749167894528000
13	1407357631537525272084480000

[0,1,12,320,16128,1382400,186802176,37571788800, 10752302776320,4222605695385600, 2209155036594831360,1502185604799843532800, 1300250162749167894528000, 1407357631537525272084480000]