A081739 - OEIS

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A081739 as a simple table

n	a(n)
1	0
2	0
3	452
4	481832565076
5	3336994692120829058949545155598207748188
6	4183667308477313795108662587270037418426429056133620947343416969739965511482242658521291610836247844507748569589344

[0,0,452,481832565076, 3336994692120829058949545155598207748188, 41836673084773137951086625872700374184264290561336\ 20947343416969739965511482242658521291610836247844\ 507748569589344]