A045518 - OEIS

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A045518 as a simple table

n	a(n)
1	6
2	6227020800
3	6402373705728000
4	620448401733239439360000
5	60415263063373835637355132068513997507264512000000000
6	608281864034267560872252163321295376887552831379210240000000000

[6,6227020800,6402373705728000, 620448401733239439360000, 60415263063373835637355132068513997507264512000000\ 000, 60828186403426756087225216332129537688755283137921\ 0240000000000]