A261030 - OEIS

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A261030 as a simple table

n	a(n)
1	30
2	756
3	245520
4	66056256
5	1125625012162560
6	73785850390636462080
7	18889393873815823712256
8	5316911978187903333320785637991776256

[30,756,245520,66056256,1125625012162560, 73785850390636462080,18889393873815823712256, 5316911978187903333320785637991776256]