Product of totient function: a(n) = Product_{k=1..n} phi(k) (cf. A000010).
A001088
Product of totient function: a(n) = Product_{k=1..n} phi(k) (cf. A000010).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =16a(6) =32a(7) =192a(8) =768a(9) =4608a(10) =18432a(11) =184320a(12) =737280a(13) =8847360a(14) =53084160a(15) =424673280a(16) =3397386240a(17) =54358179840a(18) =326149079040
External references
- oeis: A001088