A172709 - OEIS

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A172709 as a simple table

n	a(n)
1	681080400
2	1908371363842760216400
3	23511842995969107700302647865600000
4	563878027583411427270722913947560641974771250000
5	19762924171488525106388046998057857689799517215013510114150400

[681080400,1908371363842760216400, 23511842995969107700302647865600000, 563878027583411427270722913947560641974771250000, 19762924171488525106388046998057857689799517215013\ 510114150400]