A156932 - OEIS

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A156932 as a simple table

n	a(n)
0	1
1	2
2	-80
3	-107520
4	10218700800
5	128549621071872000
6	-362522272186301939712000000
7	-359926496710320918207041372160000000000
8	186528815537358278677575816954481496555520000000000000

[1,2,-80,-107520,10218700800,128549621071872000, -362522272186301939712000000, -359926496710320918207041372160000000000, 18652881553735827867757581695448149655552000000000\ 0000]