A223199 - OEIS

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A223199 as a simple table

n	a(n)
1	256
2	82944
3	27951104
4	9515827200
5	3249109204992
6	1110327429169152
7	379529320596504576
8	129739120821684666368
9	44351234892702995709952
10	15161534293466127643181056
11	5183001897895978479097217024

[256,82944,27951104,9515827200,3249109204992, 1110327429169152,379529320596504576, 129739120821684666368,44351234892702995709952, 15161534293466127643181056, 5183001897895978479097217024]