a(n) is the product of the positive integers each of which is <= n and is divisible by exactly one prime dividing n (but is coprime to every other prime dividing n). (a(1) = 1).
A119794
a(n) is the product of the positive integers each of which is <= n and is divisible by exactly one prime dividing n (but is coprime to every other prime dividing n). (a(1) = 1).
Terms
- a(0) =1a(1) =2a(2) =3a(3) =8a(4) =5a(5) =24a(6) =7a(7) =384a(8) =162a(9) =1920a(10) =11a(11) =17280a(12) =13a(13) =322560a(14) =97200a(15) =10321920a(16) =17a(17) =58060800a(18) =19a(19) =1393459200a(20) =51438240a(21) =40874803200a(22) =23a(23) =536481792000a(24) =375000a(26) =7142567040a(28) =29a(30) =31
External references
- oeis: A119794