A013304 - OEIS

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A013304 as a simple table

n	a(n)
0	1
1	0
2	-3
3	-90
4	-4095
5	-283500
6	-28534275
7	-4001347350
8	-754083705375
9	-185224922883000
10	-57754322803051875
11	-22343321962162451250
12	-10514758311176393649375
13	-5917397284663573271062500

[1,0,-3,-90,-4095,-283500,-28534275,-4001347350, -754083705375,-185224922883000,-57754322803051875, -22343321962162451250,-10514758311176393649375, -5917397284663573271062500]