A068297 - OEIS

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A068297 as a simple table

n	a(n)
1	1
2	210
3	813750
4	58494843750
5	77998664766618750
6	1929292299321647690193750
7	885215793907124317300191394818750
8	7534251364260636630211044759506294857668750

[1,210,813750,58494843750,77998664766618750, 1929292299321647690193750, 885215793907124317300191394818750, 7534251364260636630211044759506294857668750]