Product_{d|n, A007431(d) > 0} prime(A007431(d)), where A007431 is the Möbius transform of Euler's totient function.
A318838
Product_{d|n, A007431(d) > 0} prime(A007431(d)), where A007431 is the Möbius transform of Euler's totient function.
Terms
- a(0) =2a(1) =2a(2) =4a(3) =4a(4) =10a(5) =4a(6) =22a(7) =12a(8) =28a(9) =10a(10) =46a(11) =16a(12) =62a(13) =22a(14) =100a(15) =84a(16) =94a(17) =28a(18) =118a(19) =100a(20) =484a(21) =46a(22) =146a(23) =144a(24) =530a(25) =62a(26) =1036a(27) =484a(28) =206a(29) =100
External references
- oeis: A318838