A097424 - OEIS

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A097424 as a simple table

n	a(n)
1	1
2	2
3	4
4	48
5	576
6	2304
7	15360
8	614400
9	1548288000
10	3901685760000
11	9832248115200000
12	24777265250304000000
13	62438708430766080000000
14	157345545245530521600000000
15	5154640062243579887616000000000

[1,2,4,48,576,2304,15360,614400,1548288000, 3901685760000,9832248115200000, 24777265250304000000,62438708430766080000000, 157345545245530521600000000, 5154640062243579887616000000000]

[1,2,4,48,576,2304,15360,614400,1548288000,
 3901685760000,9832248115200000,
 24777265250304000000,62438708430766080000000,
 157345545245530521600000000,
 5154640062243579887616000000000]