a(n) = product of the positive integers k, k <= n, such that the positive integers <= k and coprime to k are also coprime to n.
A124675
a(n) = product of the positive integers k, k <= n, such that the positive integers <= k and coprime to k are also coprime to n.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =8a(4) =120a(5) =12a(6) =5040a(7) =384a(8) =324a(9) =80a(10) =39916800a(11) =144a(12) =6227020800a(13) =672a(14) =90a(15) =10321920a(17) =2592a(19) =1600a(20) =756a(21) =84480a(23) =62208a(24) =9000000a(25) =1198080a(26) =14285134080a(27) =18816
External references
- oeis: A124675