A065247 - OEIS

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A065247 as a simple table

n	a(n)
0	0
1	0
2	60
3	15652352
4	18446731528483929840
5	1461501637330902918203677267647731623106580665344
6	3940200619639447921227904010014361380507973

[0,0,60,15652352,18446731528483929840, 1461501637330902918203677267647731623106580665344, 3940200619639447921227904010014361380507973]