Indices k of records of low value in the ratios A319696(k)/A000005(k) between the number of distinct values of the Euler totient function applied to the divisors of k and the number of divisors of k.
A328859
Indices k of records of low value in the ratios A319696(k)/A000005(k) between the number of distinct values of the Euler totient function applied to the divisors of k and the number of divisors of k.
Terms
- a(0) =1a(1) =2a(2) =60a(3) =120a(4) =240a(5) =480a(6) =960a(7) =1920a(8) =3840a(9) =4080a(10) =8160a(11) =16320a(12) =32640a(13) =65280a(14) =130560a(15) =261120a(16) =522240a(17) =1044480a(18) =1485120a(19) =2227680a(20) =2970240a(21) =4455360a(22) =8910720a(23) =17821440a(24) =35642880a(25) =42325920a(26) =63488880a(27) =69090840a(28) =84651840a(29) =126977760
External references
- oeis: A328859