Period of reciprocal of the primorials.

Terms

a(0) =1a(1) =1a(2) =6a(3) =6a(4) =6a(5) =48a(6) =144a(7) =1584a(8) =11088a(9) =55440a(10) =55440a(11) =55440a(12) =55440a(13) =1275120a(14) =16576560a(15) =480720240a(16) =480720240a(17) =480720240a(18) =480720240a(19) =480720240a(20) =480720240a(21) =19709529840a(22) =19709529840a(23) =39419059680a(24) =39419059680a(25) =670124014560